Arduino & SCM Supplies

Features1. TPA3251D2 power amplifier chip scheme is adopted: TPA3251D2 is a high-performance class D power amplifier, which has class D efficiency and can bring real high-end sound quality. The device features advanced integrated feedback design and proprietary high-speed gate driver error correction (pure path TM HD). This technology can make the device maintain ultra-low distortion in the whole audio frequency band and show high-definition sound quality at the same time. 2. Bluetooth-compatible 5.1 audio power amplifier module: 2.1 dual channel stereo output, output power 220W * 2 (left and right channels) + 350W (subwoofer), pure HiFi sound quality. The treble is pure and transparent, the midrange is gentle and delicate, and the bass is surging and shocking. 3. Classic appearance multifunctional main knob: the main knob adopts rotary encoder only used in high-end power amplifier to realize 360 degree stepless tuning. It feels smooth, one key start and stop, long press to start and stop, and the operation is simple and convenient. 4. Support mobile app control: newly upgrade Sini link app; Support to modify Bluetooth-compatible name; Set Bluetooth-compatible password; Off / on tone 5. Supported audio input: Bluetooth-compatible 5.1, AUX, USB sound card, USB flash disk 6. Heat dissipation mechanism: Heat sink + fan for heat dissipation, safe and worry free. Large area aluminum alloy heat sink with special-shaped structure and fan support are adopted to reduce the temperature and effectively ensure the full power operation of the productSpecification1. Power supply: Above DC12-38V/10A 2. Bluetooth version: 5.1 3. Audio channel: 2.1 channels 4. Audio input: Bluetooth-compatible + AUX + USB flash disk + USB sound card 5. Audio output: left and right channels + subwoofer 6. Frequency range: 20Hz -- 20KHz 7. Volume adjustment: Encoder knob adjustment, smooth feel 8. Output power of left and right channels: - 220W/3ohms--36VDC - 175W/4ohms--36VDC - 100W/8ohms--36VDC 9. Output power of subwoofer: - 355W/2ohms--36VDC - 250W/3ohms--36VDC - 195W/4ohms-36VDC 10. Protection mechanism: Overvoltage, undervoltage, clipping, short circuit, overheating and other protection 11. Unique functions: Support sinlink app, modify Bluetooth-compatible name, set Bluetooth-compatible password, and turn off / on prompt tone 12. Product size: 130mm x 116mm x 27mmSpecification: Package Weight One Package Weight 0.42kgs / 0.92lb One Package Size 15cm * 12cm * 4cm / 5.91inch * 4.72inch * 1.57inch Qty per Carton 40 Carton Weight 17.00kgs / 37.48lb Carton Size 42cm * 25cm * 32cm / 16.54inch * 9.84inch * 12.6inch Loading Container 20GP: 793 cartons * 40 pcs = 31720 pcs 40HQ: 1842 cartons * 40 pcs = 73680 pcs

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1. Wide range of applications 2. Easy to operate 3. Small size 4. Stable performance 5. Voltage specification: 5V 6. Module size: 5 x 4.4 x 1.8cm (manual measurement) 7. Net weight: 24g 8. Module function: When the water level is lower than the B probe, the water is automatically pumped. 9. Stop pumping when the water level reaches the C probe. 10. The A/B/C water level sensing line can be used with ordinary wires, and the wire ends are exposed to 5CM. Automatically pump water when the water level is below point B 11. Stop pumping when the water level is above point CSpecification: Package Weight One Package Weight 0.04kgs / 0.08lb One Package Size 8cm * 6cm * 2cm / 3.15inch * 2.36inch * 0.79inch Qty per Carton 300 Carton Weight 11.50kgs / 25.35lb Carton Size 52cm * 42cm * 42cm / 20.47inch * 16.54inch * 16.54inch Loading Container 20GP: 290 cartons * 300 pcs = 87000 pcs 40HQ: 674 cartons * 300 pcs = 202200 pcs

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1. Stable and accurate, anti-interference2. There are 5 small lights to show the power level, applicable to inverter lithium battery power prompts3. Voltage range L1: 2S 8.4V: 4.5-5.5V; 3S 12.6V: 1.5-9V; 4S 16.8V: 8-10V; 4S 14.4V: 8-9V4. Voltage range L2: 2S 8.4V: 5.5-6.8V; 3S 12.6V: 9-11V; 4S 16.8V: 10-13V; 4S 14.4V: 9-11.4V5. Voltage range L3: 2S 8.4V: 6.8-7.4V; 3S 12.6V: 11-11.5V; 4S 16.8V: 13-15V; 4S 14.4V: 11.4-13.2V6. Voltage range L4: 2S 8.4V: 7.4-8.0V; 3S 12.6V: 11.5-12V; 4S 16.8V: 15-16V; 4S 14.4V: 13.2-14V7. Voltage range L5: 2S 8.4V: 8-8.4V; 3S 12.6V: 12-12.6V; 4S 16.8V: 16-16.8V; 4S 14.4V: 14-14.4V8. Weight: about 5.9g9. Dimensions: about 62 x 2.7 x 15.8mmUsage:1. During charging or discharging, press the red button lightly with your finger, the LED light will be on, and the current through the light board is about 30mA2. Release the finger, the LED light will go out, the light board circuit shutdown, no current through3. With reverse function, the line is connected to the wrong positive and negative no problem, adjusted over on itSpecification: Package Weight One Package Weight 0.01kgs / 0.03lb One Package Size 10cm * 8cm * 1cm / 3.94inch * 3.15inch * 0.39inch Qty per Carton 750 Carton Weight 6.50kgs / 14.33lb Carton Size 52cm * 42cm * 32cm / 20.47inch * 16.54inch * 12.6inch Loading Container 20GP: 381 cartons * 750 pcs = 285750 pcs 40HQ: 885 cartons * 750 pcs = 663750 pcs

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1. Stable and accurate, anti-interference2. There are 5 small lights to show the power level, applicable to inverter lithium battery power prompts3. Voltage range L1: 2S 8.4V: 4.5-5.5V; 3S 12.6V: 1.5-9V; 4S 16.8V: 8-10V; 4S 14.4V: 8-9V4. Voltage range L2: 2S 8.4V: 5.5-6.8V; 3S 12.6V: 9-11V; 4S 16.8V: 10-13V; 4S 14.4V: 9-11.4V5. Voltage range L3: 2S 8.4V: 6.8-7.4V; 3S 12.6V: 11-11.5V; 4S 16.8V: 13-15V; 4S 14.4V: 11.4-13.2V6. Voltage range L4: 2S 8.4V: 7.4-8.0V; 3S 12.6V: 11.5-12V; 4S 16.8V: 15-16V; 4S 14.4V: 13.2-14V7. Voltage range L5: 2S 8.4V: 8-8.4V; 3S 12.6V: 12-12.6V; 4S 16.8V: 16-16.8V; 4S 14.4V: 14-14.4V8. Weight: about 5.9g9. Dimensions: about 62 x 2.7 x 15.8mmUsage:1. During charging or discharging, press the red button lightly with your finger, the LED light will be on, and the current through the light board is about 30mA2. Release the finger, the LED light will go out, the light board circuit shutdown, no current through3. With reverse function, the line is connected to the wrong positive and negative no problem, adjusted over on itSpecification: Package Weight One Package Weight 0.01kgs / 0.03lb One Package Size 10cm * 8cm * 1cm / 3.94inch * 3.15inch * 0.39inch Qty per Carton 750 Carton Weight 6.50kgs / 14.33lb Carton Size 52cm * 42cm * 32cm / 20.47inch * 16.54inch * 12.6inch Loading Container 20GP: 381 cartons * 750 pcs = 285750 pcs 40HQ: 885 cartons * 750 pcs = 663750 pcs

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1. Stable and accurate, anti-interference2. There are 5 small lights to show the power level, applicable to inverter lithium battery power prompts3. Voltage range L1: 2S 8.4V: 4.5-5.5V; 3S 12.6V: 1.5-9V; 4S 16.8V: 8-10V; 4S 14.4V: 8-9V4. Voltage range L2: 2S 8.4V: 5.5-6.8V; 3S 12.6V: 9-11V; 4S 16.8V: 10-13V; 4S 14.4V: 9-11.4V5. Voltage range L3: 2S 8.4V: 6.8-7.4V; 3S 12.6V: 11-11.5V; 4S 16.8V: 13-15V; 4S 14.4V: 11.4-13.2V6. Voltage range L4: 2S 8.4V: 7.4-8.0V; 3S 12.6V: 11.5-12V; 4S 16.8V: 15-16V; 4S 14.4V: 13.2-14V7. Voltage range L5: 2S 8.4V: 8-8.4V; 3S 12.6V: 12-12.6V; 4S 16.8V: 16-16.8V; 4S 14.4V: 14-14.4V8. Weight: about 5.9g9. Dimensions: about 62 x 2.7 x 15.8mmUsage:1. During charging or discharging, press the red button lightly with your finger, the LED light will be on, and the current through the light board is about 30mA2. Release the finger, the LED light will go out, the light board circuit shutdown, no current through3. With reverse function, the line is connected to the wrong positive and negative no problem, adjusted over on itSpecification: Package Weight One Package Weight 0.01kgs / 0.03lb One Package Size 10cm * 8cm * 1cm / 3.94inch * 3.15inch * 0.39inch Qty per Carton 750 Carton Weight 6.50kgs / 14.33lb Carton Size 52cm * 42cm * 32cm / 20.47inch * 16.54inch * 12.6inch Loading Container 20GP: 381 cartons * 750 pcs = 285750 pcs 40HQ: 885 cartons * 750 pcs = 663750 pcs

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1. Stable and accurate, anti-interference2. There are 5 small lights to show the power level, applicable to inverter lithium battery power prompts3. Voltage range L1: 2S 8.4V: 4.5-5.5V; 3S 12.6V: 1.5-9V; 4S 16.8V: 8-10V; 4S 14.4V: 8-9V4. Voltage range L2: 2S 8.4V: 5.5-6.8V; 3S 12.6V: 9-11V; 4S 16.8V: 10-13V; 4S 14.4V: 9-11.4V5. Voltage range L3: 2S 8.4V: 6.8-7.4V; 3S 12.6V: 11-11.5V; 4S 16.8V: 13-15V; 4S 14.4V: 11.4-13.2V6. Voltage range L4: 2S 8.4V: 7.4-8.0V; 3S 12.6V: 11.5-12V; 4S 16.8V: 15-16V; 4S 14.4V: 13.2-14V7. Voltage range L5: 2S 8.4V: 8-8.4V; 3S 12.6V: 12-12.6V; 4S 16.8V: 16-16.8V; 4S 14.4V: 14-14.4V8. Weight: about 5.9g9. Dimensions: about 62 x 2.7 x 15.8mmUsage:1. During charging or discharging, press the red button lightly with your finger, the LED light will be on, and the current through the light board is about 30mA2. Release the finger, the LED light will go out, the light board circuit shutdown, no current through3. With reverse function, the line is connected to the wrong positive and negative no problem, adjusted over on itSpecification: Package Weight One Package Weight 0.01kgs / 0.03lb One Package Size 10cm * 8cm * 1cm / 3.94inch * 3.15inch * 0.39inch Qty per Carton 750 Carton Weight 6.50kgs / 14.33lb Carton Size 52cm * 42cm * 32cm / 20.47inch * 16.54inch * 12.6inch Loading Container 20GP: 381 cartons * 750 pcs = 285750 pcs 40HQ: 885 cartons * 750 pcs = 663750 pcs

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Features1. Its work is characterized by side refrigeration and side fever2. Hot and cold on both sides of the temperature difference of 68 degrees3. Connected to the 12-volt power supply cooling piece on both sides there will be difference in temperature, side cold side of the heat, do not long power cooler radiator, otherwise it will cause cooler internal overheating and burning4. These devices must be used in conjunction with a heat sink to avoid burned5. Each device is full inspected and tested6. Fitted with 6-inch insulated leadsSpecification1. Size: 40mm x 40mm2. Operates from 0~15.2V and 0~6A3. Operates Temperature: -30C to 70C4. Max power consumption: 60W5. Material：Semiconductor/ceramic plates4. Package included: 1 x cooler plate moduleInstallationCooling piece is very simple to install and use. Before installation, to find a dry cell, connected to the two leads of the cooler, obviously cold you can feel at one end and the other end of fever, remember that the polarity of the lead and determine a good cooler cold and hot end. If you want to get a bigger system Ling, it is recommended that two cooling mode, with two stack up with the above, a grim absorption following a fever, the experiments prove two refrigeration effect is much better than the single-stage, the condition can choose three, of course, have a large power supply support.Specification: Package Weight One Package Weight 0.03kgs / 0.07lb One Package Size 5cm * 5cm * 1cm / 1.97inch * 1.97inch * 0.39inch Qty per Carton 2560 Carton Weight 15.00kgs / 33.07lb Carton Size 40cm * 40cm * 40cm / 15.75inch * 15.75inch * 15.75inch Loading Container 20GP: 416 cartons * 2560 pcs = 1064960 pcs 40HQ: 967 cartons * 2560 pcs = 2475520 pcs

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1. Function of this aluminum heat sink is to cool down the board and make it operate safely2. The aluminum heat sink can reduce the risk of hardware failure because of overheating3. Will cool more LEDs if work with a fan3. Material: Aluminum4. Color: Black5. Weight: 15g6. Size: 40 x 40 x 11mm7. Application: LED, Power IC, Memory, Transistor etc.3. Package included:1 x Aluminum heat sink 40 x 40 x 11mmSpecification: Package Weight One Package Weight 0.03kgs / 0.07lb One Package Size 6cm * 6cm * 1cm / 2.36inch * 2.36inch * 0.39inch Qty per Carton 1440 Carton Weight 15.00kgs / 33.07lb Carton Size 36cm * 36cm * 40cm / 14.17inch * 14.17inch * 15.75inch Loading Container 20GP: 514 cartons * 1440 pcs = 740160 pcs 40HQ: 1194 cartons * 1440 pcs = 1719360 pcs

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1. Humidity range: 0-1002. Material physical properties: semiconductor3. Output signal: digital4. Working voltage: 3.3V-5V5. Size: 3cm * 1.6cm6. Features: LM393 chip, stable operation, fixed bolt holes for easy installation, dual output mode of the module, simple digital output, more accurate analog output, and adjustable sensitivitySpecification: Package Weight One Package Weight 0.02kgs / 0.04lb One Package Size 5cm * 5cm * 2cm / 1.97inch * 1.97inch * 0.79inch Qty per Carton 500 Carton Weight 9.00kgs / 19.84lb Carton Size 39cm * 39cm * 15cm / 15.35inch * 15.35inch * 5.91inch Loading Container 20GP: 1168 cartons * 500 pcs = 584000 pcs 40HQ: 2713 cartons * 500 pcs = 1356500 pcs

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Features1. Bluetooth+AUX audio input, dual-channel stereo output, just a little sound distortion. 2. You can directly adjust the treble and bass. 3. AMP module has AM interference suppression function, shielding cover power inductor, low noise front stage operational amplifier, you will enjoy a more excellent sound quality experience. 4. Audio amplifier board with over-voltage protection, under-voltage protection, over-heat protection, short-circuit protection. 5. The illustration of each interface is printed on the protective plate, making it easy to install and use even without instructions. Use occasion: This 50W+50W dual-channel Bluetooth audio amplifier board is widely use indoor and outdoor, such as family, party, bar, band, concert, carnival etc.Specification1. Material: ABS plastic 2. Bluetooth version: 5.0 3. Input Mode: Bluetooth / AUX 4. Power Output: 50W x 2 5. Channel: 2 6. Chip: TPA3116D2 (AM interference suppression function) 7. Bluetooth transmission distance: 10m (without occlusion) 8. Adapter speaker: 15-100W, 4 ohm s- 8 ohms 9. Signal to noise ratio: Greater than 90dB 10. Adapted power supply: DC 9-24V/ above 2A 11. Output Power: - 15W x 2 at 12V, 8 ohms - 20W x 2 at 19V, 8 ohms - 30W x 2 at 12V, 4 ohms - 30W x 2 at 24V, 8 ohms - 40W x 2 at 19V, 4 ohms - 50W x 2 at 24V, 4 ohms 12. Size: 110 x 70 x 21mmSpecification: Package Weight One Package Weight 0.18kgs / 0.40lb One Package Size 16cm * 12cm * 3cm / 6.3inch * 4.72inch * 1.18inch Qty per Carton 100 Carton Weight 17.00kgs / 37.48lb Carton Size 50cm * 32cm * 33cm / 19.69inch * 12.6inch * 12.99inch Loading Container 20GP: 505 cartons * 100 pcs = 50500 pcs 40HQ: 1172 cartons * 100 pcs = 117200 pcs

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Technical specifications:1. Support sampling rate (KHz): 8/11.025/12/16/22.05/24/32/44.1/482. 24-bit DAC output, dynamic range support: 90dB, signal-to-noise ratio support: 85dB3. Fully support FAT16, FAT32 file system, support 32G TF card, support 32G U disk, 64M byte NORFLASH4. A variety of control modes are available. IO control mode, serial port mode, AD button control mode5. The broadcast language insertion function, you can pause the background music that is playing. After the ad is played, return to the background sound to continue playing6. The audio data is sorted by folder, supporting 100 folders at most, and 255 tracks can be assigned to every folder7. 30 levels of volume adjustable, 6 levels of EQ adjustableApplication range:1. Car navigation voice broadcast2. Highway transportation inspection, toll station voice prompt3. Voice prompts for safety inspections at railway stations and bus stations4. Voice prompts for power, communications, and financial business offices5. Voice prompts for vehicle entry and exit channel verification6. Voice prompts for border inspection channels7. Multi-channel voice alarm or equipment operation guidance voice8. Voice notice for safe driving of electric sightseeing cars9. Automatic alarm for mechanical and electrical equipment failure10. Fire alarm prompt11. Automatic broadcast equipment, regular broadcastProduct description:1. Can be directly connected to speakers2. The module can be used alone with the power supply battery, speakers, and buttons, or can be controlled through the serial port, as a module of UNO or any single-chip microcomputer with a serial port3. The module itself perfectly integrates the hard decoding of MP3, WAV and WMA. At the same time, the software supports TF card driver, supports FAT16, FAT32 file system4. Through simple serial port commands, you can complete the functions of playing the specified music and how to play the music. There is no need for cumbersome underlying operations, easy to use, stable and reliableSpecification: Package Weight One Package Weight 0.02kgs / 0.05lb One Package Size 12cm * 8cm * 2cm / 4.72inch * 3.15inch * 0.79inch Qty per Carton 300 Carton Weight 7.00kgs / 15.43lb Carton Size 46cm * 32cm * 32cm / 18.11inch * 12.6inch * 12.6inch Loading Container 20GP: 566 cartons * 300 pcs = 169800 pcs 40HQ: 1314 cartons * 300 pcs = 394200 pcs

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1. Voltage: DC 2.5-5.5V. 2. Output Power: 3W + 3W (at 4 ohm). 3. Noise ratio: 90dB. 4. Efficiency: more than 90 percent. 5. 2 channels 3W amplifier with PAM8403. 6. Output is CMOS BTL driver. 7. Cannot change any component parameters to protect IC. 8. The board can also be powered by 5V USB power supply or 4 x 1.5V battery. 9. It is perfect for MP3, MP4 and notebook.Specification: General Model LDTR-WG0126 Material Circuit Board Size 2.3*1.6*0.2cm / 0.91*0.63*0.08inch Weight 6g Package Weight One Package Weight 0.03kgs / 0.07lb One Package Size 6cm * 5cm * 2cm / 2.36inch * 1.97inch * 0.79inch Qty per Carton 400 Carton Weight 11.50kgs / 25.35lb Carton Size 42cm * 22cm * 32cm / 16.54inch * 8.66inch * 12.6inch Loading Container 20GP: 901 cartons * 400 pcs = 360400 pcs 40HQ: 2093 cartons * 400 pcs = 837200 pcs

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1. The USB to RS232 converter cable provides simple and easy way to connect universal serial bus (USB) and serial port interface. 2. Via this adapter cable, you can utilize the peripheral with serial port interface in an easy-use environment such as plug the play hot swap function. 3. This adapter is designed for ideal connections to cellular phone, digital camera, modems or ISDN terminal adapter with max. 1 Mbps data transfer rate. 4. Application: Convert USB port to RS232 serial port.Specification: General Model LDTR-WG0128 Material PVC Connectors USB 2.0, RS232 Cable Length 80cm Weight 43g Package Weight One Package Weight 0.06kgs / 0.14lb One Package Size 12cm * 8cm * 3.5cm / 4.72inch * 3.15inch * 1.38inch Qty per Carton 100 Carton Weight 6.50kgs / 14.33lb Carton Size 42cm * 37cm * 26cm / 16.54inch * 14.57inch * 10.24inch Loading Container 20GP: 660 cartons * 100 pcs = 66000 pcs 40HQ: 1532 cartons * 100 pcs = 153200 pcs

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1. Double decks for 4pcs AA batteries. 2. Easy to connect to other devices with 18cm cable. 3. Able to make 6V battery pack from alkaline cells. 4. Perfect external power source for Arduino system.Specification: General Model LDTR-DJ002 Types Electric Components Material Plastic Cable Length 18cm Size 5.7*3*2.8cm / 2.24*1.18*1.1inch Weight 10g Package Weight One Package Weight 0.03kgs / 0.06lb One Package Size 10cm * 6cm * 3cm / 3.94inch * 2.36inch * 1.18inch Qty per Carton 200 Carton Weight 5.00kgs / 11.02lb Carton Size 42cm * 32cm * 32cm / 16.54inch * 12.6inch * 12.6inch Loading Container 20GP: 620 cartons * 200 pcs = 124000 pcs 40HQ: 1439 cartons * 200 pcs = 287800 pcs

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1. Resistance range: 100 ohm - 10K ohm. 2. It is widely used to adjust timer, speed, temperature. 3. For MCU experiment.Specification: General Model WXD3 - 13 - 2W Size 5.7*2.6*2 cm Weight 23g Package Weight One Package Weight 0.05kgs / 0.12lb One Package Size 8cm * 5cm * 3cm / 3.15inch * 1.97inch * 1.18inch Qty per Carton 120 Carton Weight 6.50kgs / 14.33lb Carton Size 32cm * 26cm * 22cm / 12.6inch * 10.24inch * 8.66inch Loading Container 20GP: 1456 cartons * 120 pcs = 174720 pcs 40HQ: 3382 cartons * 120 pcs = 405840 pcs

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1. Low standby current.through the I2C bus serial input / output. 2. PCF8591 by 3 hardware address pins addressing. Sampling rate PCF8591 I2C bus rate decided. 3. 4 analog inputs programmable as single-ended or differential inputs.Automatic incremental channel selection 4. PCF8591 analog voltage range from VSS to VDD.PCF8591 built-in track and hold circuit. 5. 8-bit successive approximation A / D converter. through an analog output DAC gain. module chip using PCF8951 . 6. Working Voltage : 2.5-6V Specification: General Size 3.6*2.3cm Weight 8g Package Weight One Package Weight 0.03kgs / 0.06lb One Package Size 9cm * 7cm * 5cm / 3.54inch * 2.76inch * 1.97inch Qty per Carton 120 Carton Weight 3.00kgs / 6.61lb Carton Size 34cm * 26cm * 22cm / 13.39inch * 10.24inch * 8.66inch Loading Container 20GP: 1371 cartons * 120 pcs = 164520 pcs 40HQ: 3183 cartons * 120 pcs = 381960 pcs

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1. Works with official Arduino boards 2. This is an I2C controlled PWM driver board with a built-in clock 3. You can use 3.3V MCU to control and drive the output up to 6V 4. 6 address select pins allow you to connect 62 driver boards to one I2C bus, total 992 channels of PWM output 5. About 1.6KHz frequency modulation PWM output 6. PCA9685 chip is at the center of the board 7. With power input terminal 8. With green power indicator light 9. Convenient to insert total 16 servos at the same time 10. With reverse polarity protection for input 11. Cascade design 12. Put a bulky capacitor on the V+ line 13. Put 220 ohm resistance components onto all PWM output linesSpecification: General Size 6.2*2.6*1.2cm Weight 10g Package Weight One Package Weight 0.03kgs / 0.07lb One Package Size 8cm * 5cm * 2.5cm / 3.15inch * 1.97inch * 0.98inch Qty per Carton 120 Carton Weight 4.20kgs / 9.26lb Carton Size 34cm * 27cm * 22cm / 13.39inch * 10.63inch * 8.66inch Loading Container 20GP: 1320 cartons * 120 pcs = 158400 pcs 40HQ: 3065 cartons * 120 pcs = 367800 pcs

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1. Chip: MAX3232CSE 2. Voltage range: 3 v to 5 v 3. The highest baud rate : not recommended More than 120 KBPS 4. A converter board for electrical levels Specification: General Size 1.6*1cm Package Weight One Package Weight 0.02kgs / 0.05lb One Package Size 3cm * 3cm * 1.5cm / 1.18inch * 1.18inch * 0.59inch Qty per Carton 300 Carton Weight 5.20kgs / 11.46lb Carton Size 20cm * 17cm * 17cm / 7.87inch * 6.69inch * 6.69inch Loading Container 20GP: 4613 cartons * 300 pcs = 1383900 pcs 40HQ: 10710 cartons * 300 pcs = 3213000 pcs

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1. Onboard complex frequency decoder chip MT8870 2. Onboard voice input interface 3. Onboard five LED indicators for easy viewing output state 4. Basic pins of the chip have been drawn 5. For Arduino, Raspberry Pi, ARM MCU and moreSpecification: General Size 3*2.5*1cm Weight 4g Package Weight One Package Weight 0.03kgs / 0.06lb One Package Size 5cm * 4cm * 2.5cm / 1.97inch * 1.57inch * 0.98inch Qty per Carton 120 Carton Weight 3.00kgs / 6.61lb Carton Size 27cm * 18cm * 17cm / 10.63inch * 7.09inch * 6.69inch Loading Container 20GP: 3227 cartons * 120 pcs = 387240 pcs 40HQ: 7492 cartons * 120 pcs = 899040 pcs

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1. Material: PCB 2. Working voltage: 3.3 or 5V 3. On-board AMS1117 - 3.3 chip 4. Wireless module operating voltage is 3.3V, while the ordinary 51 single-chip is 5V 5. Connect wireless module with 51 single-chip system board 6. It is for NRF24L01 + wireless module 7. This is a simple socket board which is for NRF24L01 wireless moduleSpecification: General Size 2.6*1.3*1.2cm Weight 6g Package Weight One Package Weight 0.03kgs / 0.06lb One Package Size 6cm * 4cm * 2.5cm / 2.36inch * 1.57inch * 0.98inch Qty per Carton 120 Carton Weight 3.00kgs / 6.61lb Carton Size 27cm * 20cm * 18cm / 10.63inch * 7.87inch * 7.09inch Loading Container 20GP: 2743 cartons * 120 pcs = 329160 pcs 40HQ: 6368 cartons * 120 pcs = 764160 pcs

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1. Used as a square wave signal generator, which produces square wave signals for experimental development. 2. Used to generate square wave signals that can drive the stepper motor . 3. The adjustable pulse is generated for use of MCU. 4. Generate adjustable pulses to control the related circuits. 5. NOTE :When using a jumper cap to change the frequency, please cut off the power first, wait for the jump cap and then reconnect.Specification: General Material Plastic, Metal Size 3.5*2.5*1.5cm Weight 10g Package Weight One Package Weight 0.02kgs / 0.04lb One Package Size 3.5cm * 2.5cm * 1.5cm / 1.38inch * 0.98inch * 0.59inch Qty per Carton 500 Carton Weight 6.00kgs / 13.23lb Carton Size 35cm * 20cm * 15cm / 13.78inch * 7.87inch * 5.91inch Loading Container 20GP: 2539 cartons * 500 pcs = 1269500 pcs 40HQ: 5895 cartons * 500 pcs = 2947500 pcs

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Main Features: 1. The board uses a high-performance digital amplifier TDA8932 chip 2. Small size, high efficiency, high power, good sound quality, without additional installation of radiator 3. Suitable for the transformation of active speaker, product development, and other audio application Specification: 1. Material: PCB 2. Chipset: TDA8932 3. Operating voltage: single DC 10 - 30V ( 24V recommended voltage ) 4. Current: above 2A 5. Power output: 35W 6. Speaker impedance: 4 - 8 ohm ( 8 ohm is the best ) 7. Circuit configuration: mono BTL outputSpecification: General Types Amplifier Board Size 6.0*6.0*2.5 cm Weight 25 g Package Weight One Package Weight 0.03kgs / 0.07lb One Package Size 6cm * 6cm * 2.5cm / 2.36inch * 2.36inch * 0.98inch Qty per Carton 300 Carton Weight 8.60kgs / 18.96lb Carton Size 36cm * 30cm * 25cm / 14.17inch * 11.81inch * 9.84inch Loading Container 20GP: 987 cartons * 300 pcs = 296100 pcs 40HQ: 2292 cartons * 300 pcs = 687600 pcs

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1. Voltage: DC 12V2. Shaft diameter: 3mm D shaft3. High torque and stable operation4. Durable and long service life5. Low noise, low power consumption, small size6. Suitable for equipment, robots, cameras, hose machines, etc.7. Dimensions: 12x10x29mmSpecification: Package Weight One Package Weight 0.04kgs / 0.09lb One Package Size 3cm * 5cm * 3cm / 1.18inch * 1.97inch * 1.18inch Qty per Carton 500 Carton Weight 19.00kgs / 41.89lb Carton Size 23cm * 39cm * 23cm / 9.06inch * 15.35inch * 9.06inch Loading Container 20GP: 1292 cartons * 500 pcs = 646000 pcs 40HQ: 3000 cartons * 500 pcs = 1500000 pcs

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This is 28YBJ-48 DC 5V 4 phase 5 wire stepper motor with ULN2003 driver board, 5-wire phase can drive ordinary uln2003 chip can also be connected as phase 2 may be supporting the development board, direct plug, easy to use stepper motor used in the development boardMotor1. Diameter: 28mm2. Voltage: 5V3. Step angle: 5.625 x 1/644. Reduction ratio: 1/64ULN2003 driver board1. A, B, C, D LED indication Four-phase stepper motor work status2. Size: 31x35mmPackage included1. 1 x ULN2003 driver board2. 1 x 28BYJ-48 stepper motorSpecification: Package Weight One Package Weight 0.10kgs / 0.22lb One Package Size 3cm * 3cm * 1cm / 1.18inch * 1.18inch * 0.39inch Qty per Carton 6760 Carton Weight 15.00kgs / 33.07lb Carton Size 39cm * 39cm * 40cm / 15.35inch * 15.35inch * 15.75inch Loading Container 20GP: 438 cartons * 6760 pcs = 2960880 pcs 40HQ: 1017 cartons * 6760 pcs = 6874920 pcs

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1. Metal gear, stable transmission and wear-resistant2. Pure copper motor, effectively insulates dust and high temperature3. 304 stainless steel folding, high-precision gear box4. Features: Durable, dust-proof, anti-skid, high temperature resistance, abrasion resistance5. Rated voltage: 6/12v6. Application: electronic locks, smart cars, robots, cameras, etc.7. Size: about 14x17x35mm8. Material: 304 stainless steelSpecification: Package Weight One Package Weight 0.06kgs / 0.14lb One Package Size 10cm * 6cm * 3cm / 3.94inch * 2.36inch * 1.18inch Qty per Carton 200 Carton Weight 1.00kgs / 2.20lb Carton Size 46cm * 32cm * 32cm / 18.11inch * 12.6inch * 12.6inch Loading Container 20GP: 566 cartons * 200 pcs = 113200 pcs 40HQ: 1314 cartons * 200 pcs = 262800 pcs

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1. Metal gear, stable transmission and wear-resistant2. Pure copper motor, effectively insulates dust and high temperature3. 304 stainless steel folding, high-precision gear box4. Features: Durable, dust-proof, anti-skid, high temperature resistance, abrasion resistance5. Rated voltage: 6/12v6. Application: electronic locks, smart cars, robots, cameras, etc.7. Size: about 14x17x35mm8. Material: 304 stainless steelSpecification: Package Weight One Package Weight 0.06kgs / 0.14lb One Package Size 10cm * 6cm * 3cm / 3.94inch * 2.36inch * 1.18inch Qty per Carton 200 Carton Weight 1.00kgs / 2.20lb Carton Size 46cm * 32cm * 32cm / 18.11inch * 12.6inch * 12.6inch Loading Container 20GP: 566 cartons * 200 pcs = 113200 pcs 40HQ: 1314 cartons * 200 pcs = 262800 pcs

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1. Metal gear, stable transmission and wear-resistant2. Pure copper motor, effectively insulates dust and high temperature3. 304 stainless steel folding, high-precision gear box4. Features: Durable, dust-proof, anti-skid, high temperature resistance, abrasion resistance5. Rated voltage: 6/12v6. Application: electronic locks, smart cars, robots, cameras, etc.7. Size: about 14x17x35mm8. Material: 304 stainless steelSpecification: Package Weight One Package Weight 0.06kgs / 0.14lb One Package Size 10cm * 6cm * 3cm / 3.94inch * 2.36inch * 1.18inch Qty per Carton 200 Carton Weight 1.00kgs / 2.20lb Carton Size 46cm * 32cm * 32cm / 18.11inch * 12.6inch * 12.6inch Loading Container 20GP: 566 cartons * 200 pcs = 113200 pcs 40HQ: 1314 cartons * 200 pcs = 262800 pcs

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1. Metal gear, stable transmission and wear-resistant2. Pure copper motor, effectively insulates dust and high temperature3. 304 stainless steel folding, high-precision gear box4. Features: Durable, dust-proof, anti-skid, high temperature resistance, abrasion resistance5. Rated voltage: 6/12v6. Application: electronic locks, smart cars, robots, cameras, etc.7. Size: about 14x17x35mm8. Material: 304 stainless steelSpecification: Package Weight One Package Weight 0.06kgs / 0.14lb One Package Size 10cm * 6cm * 3cm / 3.94inch * 2.36inch * 1.18inch Qty per Carton 200 Carton Weight 1.00kgs / 2.20lb Carton Size 46cm * 32cm * 32cm / 18.11inch * 12.6inch * 12.6inch Loading Container 20GP: 566 cartons * 200 pcs = 113200 pcs 40HQ: 1314 cartons * 200 pcs = 262800 pcs

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1. Metal gear, stable transmission and wear-resistant2. Pure copper motor, effectively insulates dust and high temperature3. 304 stainless steel folding, high-precision gear box4. Features: Durable, dust-proof, anti-skid, high temperature resistance, abrasion resistance5. Rated voltage: 6/12v6. Application: electronic locks, smart cars, robots, cameras, etc.7. Size: about 14x17x35mm8. Material: 304 stainless steelSpecification: Package Weight One Package Weight 0.06kgs / 0.14lb One Package Size 10cm * 6cm * 3cm / 3.94inch * 2.36inch * 1.18inch Qty per Carton 200 Carton Weight 1.00kgs / 2.20lb Carton Size 46cm * 32cm * 32cm / 18.11inch * 12.6inch * 12.6inch Loading Container 20GP: 566 cartons * 200 pcs = 113200 pcs 40HQ: 1314 cartons * 200 pcs = 262800 pcs

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1. Metal gear, stable transmission and wear-resistant2. Pure copper motor, effectively insulates dust and high temperature3. 304 stainless steel folding, high-precision gear box4. Features: Durable, dust-proof, anti-skid, high temperature resistance, abrasion resistance5. Rated voltage: 6/12v6. Application: electronic locks, smart cars, robots, cameras, etc.7. Size: about 14x17x35mm8. Material: 304 stainless steelSpecification: Package Weight One Package Weight 0.06kgs / 0.14lb One Package Size 10cm * 6cm * 3cm / 3.94inch * 2.36inch * 1.18inch Qty per Carton 200 Carton Weight 1.00kgs / 2.20lb Carton Size 46cm * 32cm * 32cm / 18.11inch * 12.6inch * 12.6inch Loading Container 20GP: 566 cartons * 200 pcs = 113200 pcs 40HQ: 1314 cartons * 200 pcs = 262800 pcs

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About The Product1. Multifunctional time relay module, a variety of working voltages are optional, DC5V 2. The output terminal is isolated from the circuit by a relay, which can control low-voltage electrical appliances and 220V lines, with a control capacity of up to 10A. 3. There are as many as 27 working modes to meet various testing and automatic control applications, and the delay time is adjustable from 0.01 seconds to 999 minutes. 4. The trigger port can be triggered by a voltage signal, or it can be triggered by a button.Specifications1. Supply voltage: DC 5V 2. Trigger terminal voltage: DC 5~30V (can also be triggered by button) 3. Relay control current: 10A 4. Module size: 63 x 42 x 20mm (length, width and height)Specifications Set1. Press and hold the S1 key and do not let go, after 0.5 seconds, the display will display P-xx, press S2 and S3 to change the working mode. 2. After selecting the working mode, short press the S1 key to enter the A time setting, and the screen displays Axxx. At this time, press the S2 and S3 keys to modify the A time parameters. Short press the S2 and S3 keys to add or subtract 1, and long press to quickly add or subtract. 10. Press the S4 key to set the position of the decimal point. 3. After setting the A time, press the S1 key to set the B time, and the screen displays bxxx. At this time, press the S2 and S3 keys to modify the B time parameters. Short press the S2 and S3 keys to add or subtract 1, and long press to quickly add or subtract. 10. Press the S4 key to set the position of the decimal point. 4. After setting the B time, press the S1 key for the last time to exit the setting state and save all parameters.Point Position1. Ax.xx decimal point is in the hundreds place, the time range is 0.01~9.99 seconds 2. Axx.x decimal point is in ten place, time range is 0.1~99.9 seconds 3. Axxx. The decimal point is in the one place, the time range is 1~999 seconds 4. Axxx has no decimal point, the time range is 1~999 minutes 5. Turn off the display: In the non-setting state, press the S4 key to turn off the display, and press it again to turn it on again.Specification: Package Weight One Package Weight 0.06kgs / 0.13lb One Package Size 10cm * 10cm * 3cm / 3.94inch * 3.94inch * 1.18inch Qty per Carton 200 Carton Weight 12.00kgs / 26.46lb Carton Size 52cm * 42cm * 32cm / 20.47inch * 16.54inch * 12.6inch Loading Container 20GP: 381 cartons * 200 pcs = 76200 pcs 40HQ: 885 cartons * 200 pcs = 177000 pcs

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Features1. With LCD display, the current mode and parameters are clear at a glance, very clear, simple and practical. 2. Support high and low level trigger, switch control, suitable for most occasions. 3. Wide voltage power supply (6~30V) supports micro USB 5.0V power supply, which is very convenient to use. 4. Support UART data upload and parameter setting. 5. There is a key emergency stop function (STOP key), with reverse connection protection, reverse connection will not burn. 6. Added sleep mode. After enabling, if there is no operation within 5 minutes, the LCD backlight will be automatically turned off; any key will wake up. 7. Different OP, CL, LOP parameters can be set, these parameters are independent of each other and saved separately. 8. All setting parameters are automatically saved after power off.Specification1. Working voltage: 6-30V, support micro USB 5.0V power supply 2. Trigger signal source: high level trigger (3.0V~24V), low level trigger (0.0V~0.2V), switch control (passive switch). 3. Output capability: can control equipment within DC 30v 5A or AC 220v 5A 4. Quiescent current: 15mA Working current: 50mA 5. Working temperature: -40a??85 degrees Celsius 6. With optocoupler isolation, enhance anti-interference ability, industrial-grade circuit board, set parameters will be remembered forever after power off 7. Size: 8.0x3.8x1.9cm 8. Weight: about 36gSpecification: Package Weight One Package Weight 0.05kgs / 0.12lb One Package Size 10cm * 10cm * 2cm / 3.94inch * 3.94inch * 0.79inch Qty per Carton 200 Carton Weight 11.00kgs / 24.25lb Carton Size 42cm * 42cm * 32cm / 16.54inch * 16.54inch * 12.6inch Loading Container 20GP: 472 cartons * 200 pcs = 94400 pcs 40HQ: 1096 cartons * 200 pcs = 219200 pcs

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1. Power supply current: 10A2. Power supply voltage: 12v/24v3. Use: Time delay4. Module to achieve a certain time delay after power on and then output voltage / or off output5. Delay time 1~120 seconds adjustable, can be used for car recorder delay on, faucet after the water delay off and other applications6. With power supply reverse protection, reverse connection will not burn7. With repeat trigger button interface, can be connected to a button to achieve re-trigger the delay time, without the need to re-power8. To adjust the delay time: the module is connected to the power supply, using a multimeter voltage class to measure the voltage value of the two points AB, every 0.039V for 1 second. For example, to adjust to 15 seconds, it is 0.039Vx15 = 0.58V, after adjusting the charging power off and then power on test, if the time value meets the requirements, the normal use of the module can be (default factory value of 1 minute)9. Repeated triggering without power: If the application requires repeated triggering without power, a self-resetting button can be attached to the TR and G terminals of the board, and the module will repeat the delayed action once after each press of the button and release.10. Dimensions: 52.8x32x18mmSpecification: Package Weight One Package Weight 0.08kgs / 0.19lb One Package Size 7cm * 4cm * 3cm / 2.76inch * 1.57inch * 1.18inch Qty per Carton 356 Carton Weight 30.00kgs / 66.14lb Carton Size 49cm * 28cm * 21cm / 19.29inch * 11.02inch * 8.27inch Loading Container 20GP: 925 cartons * 356 pcs = 329300 pcs 40HQ: 2148 cartons * 356 pcs = 764688 pcs

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1. One-button emergency stop function (STOP button) is more convenient to use2. Voltage input anti-reverse connection circuit, worry-free wiring3. Setting parameters power off, power off memory function4. Added sleep mode, automatically turn off the display if there is no operation within 5 minutes5. Working voltage: DC6V-DC30V6. Output capacity: Controllable equipment within DC 30V/10A or AC 250V/10A7. Working temperature: -40 to 80 degrees Celsius8. Signal source: high level trigger DC 3.0V-24V9. Mounting hole: diameter 3mm10. Dimensions: 70 x 40 x 23mm11. Net weight: about 44gSpecification: Package Weight One Package Weight 0.08kgs / 0.19lb One Package Size 10cm * 6cm * 4cm / 3.94inch * 2.36inch * 1.57inch Qty per Carton 356 Carton Weight 30.00kgs / 66.14lb Carton Size 50cm * 50cm * 60cm / 19.69inch * 19.69inch * 23.62inch Loading Container 20GP: 177 cartons * 356 pcs = 63012 pcs 40HQ: 412 cartons * 356 pcs = 146672 pcs

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1. Programmable timing relay modules are widely used in car modification & industrial electromechanical equipment2. Voltage input anti-reverse connection circuit, worry-free wiring3. Signal input optocoupler isolation, strong anti-interference ability4. Set parameters for long-term memory after power off5. Powerful FLASH MCU online programming function, according to user needs, you can contact the manufacturer to customize the required functions6. Working temperature: -40 to 85 degrees Celsius7. Working voltage: DC12V (normal working voltage DC1OV-16V)8. Signal source: DC4V-20V (common power supply positive trigger, button, PNP sensor, PLC signal, etc.)9. Output capability: It can control equipment within DC 30V5A or AC 220V5A10. Static current: 20MA11. Working current: 50MA12. Service life: more than 100,000 times13. Size: 64.2 x 34.8 x 18.5MM14. Net weight: about 26GPattern introduction- P-1: trigger received- A1: Triggering again during the delay is invalid- A2: Re-timing is triggered again during the delay- A3: During the delay period, the relay is triggered again to reset and terminate the timing appliance, the Y time starts, and the relay is disconnected when the timing ends- P-2: Receive a trigger signal, start X time, and continue when time ends- P-3: Cycling switch mode- A1: The relay is turned on after the power is turned on, and it is turned off when the timing is over, infinite loop- A2: The relay is disconnected after the power is turned on, and it is connected after the timing is over, infinite loop- P-4: After receiving the trigger signal, the relay will continue to be connected until the signal disappears and start timing. After the timing ends, the relay will be disconnected. If the trigger signal is received again during the delay period, the delay will be canceled until the signal disappears, and the timing will be restarted.Specification: Package Weight One Package Weight 0.05kgs / 0.12lb One Package Size 10cm * 5cm * 3cm / 3.94inch * 1.97inch * 1.18inch Qty per Carton 500 Carton Weight 27.00kgs / 59.52lb Carton Size 50cm * 50cm * 54cm / 19.69inch * 19.69inch * 21.26inch Loading Container 20GP: 197 cartons * 500 pcs = 98500 pcs 40HQ: 458 cartons * 500 pcs = 229000 pcs

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Features:1. This product is an industrial-grade 16-channel relay module controlled by RS485 bus, using Modbus RTU protocol, built-in power isolation, ADI magnetic isolation, resettable fuse, TVS diode and other protection circuits, and equipped with ABS case.2. Modbus RTU 16 channel relay is very easy to use. Due to its fast communication speed, stability, reliability and security, it is ideal for industrial control equipment and/or applications with high communication requirements.3. Configurable device address (1-255), multiple devices can be cascaded on the RS485 bus4. It has the function of blinking and blinking. By passing parameters to the command, the relay can be opened for a period of time and then automatically closed5. On-board integrated power isolation, providing stable isolation voltage, no additional power supply is required at the isolation end6. Onboard integrated ADI magnetic isolation, which can realize signal isolation, high reliability, strong anti-interference and low power consumption7. Onboard resettable fuse and TVS (transient voltage suppressor), effectively suppress surge voltage and transient peak voltage in the circuit, provide overcurrent/overvoltage, lightning protection, anti-static8. On-board optocoupler isolation to prevent the relay from being interfered by the high-voltage circuit9. On-board dedicated relay driver chip, built-in freewheeling diode protection, stronger and more stable driving capability10. Anti-reverse connection circuit to prevent accidental damage to the circuit by wrong connection11. High quality relay, contact rating: ≤10A 250VAC/30VDC12. Rail-type ABS shell, easy to install and safe to use13. There are 3 LEDs for indicating MCU status and signal sending and receiving statusProduct parameters:1. Working voltage: 5V2. Communication interface: RS4853. Baud rate: 4800, 9600, 19200, 38400, 57600, 115200, 128000, 2560004. Default communication format: 9600, N, 8, 15. Relay channel: 166. Contact information: 1NO 1NC7. Communication protocol: standard Modbus RTU protocol8. RS485 address: 1-2559. LED indicator light:STA: MCU indicator light, it keeps flashing when the MCU is working normallyTXD: TX indicator light, lights up when sending dataRXD: RX indicator light, lights up when receiving dataPacking list:-Modbus RTU relay 16CH x1-US Plug 5V 2A power supply (with EU head adapter) x1Specification: Package Weight One Package Weight 0.54kgs / 1.20lb One Package Size 24cm * 13cm * 7cm / 9.45inch * 5.12inch * 2.76inch Qty per Carton 52 Carton Weight 30.00kgs / 66.14lb Carton Size 50cm * 50cm * 60cm / 19.69inch * 19.69inch * 23.62inch Loading Container 20GP: 177 cartons * 52 pcs = 9204 pcs 40HQ: 412 cartons * 52 pcs = 21424 pcs

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1. Size: 6.8CM x 2.1CM2. Main chip: NE5553. Working voltage: DC 12V/5VFeatures:1. The relay time delay and power supply is connected.Specific as follows: for 12V/5V power supply to the relay, relay not immediately and absorption, relay the output status to: normally open and public disconnect, normally closed and public conduction;Wait for delay 1-10 s (adjustable), relay and absorption, at this point, the relay outputs status to: normally open and public conduction, normally closed and public disconnected;As long as the module power continuously, this state will remain.2. The delay time is adjustable, (0-10 seconds)4. Increase the potentiometer to increase the delay time5. Increasing the capacitor C1 can increase the delay time6. With input power indicator light7. With relay pull-in indicator light8. It can control AC 220V/10A equipment. (Large control equipment 2000W)9. With relay freewheeling protection.10. Delay time formula: T=1.1RC. For example: capacitor 100uf resistor 100K T=1.1 x 100000 x 0.0001=11 secondsApplications1. The on-board equipment on the time delay, prevent excessive current when the car lighter burned on-board equipment.2. Need to have order to start the occasion, to prevent multiple devices at the same time starting current is too large burning appliances.Specification: Package Weight One Package Weight 0.02kgs / 0.05lb One Package Size 14cm * 7cm * 4cm / 5.51inch * 2.76inch * 1.57inch Qty per Carton 500 Carton Weight 12.00kgs / 26.46lb Carton Size 30cm * 50cm * 40cm / 11.81inch * 19.69inch * 15.75inch Loading Container 20GP: 444 cartons * 500 pcs = 222000 pcs 40HQ: 1031 cartons * 500 pcs = 515500 pcs

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1. This module complies with international safety standards, with isolation slots between the control area and the load area2. Using relays, with power and relay action indication, absorb bright, disconnect not bright3. When there is signal at the signal input, the common terminal and the normally open terminal will conduct4. It can be used as a microcontroller development board module, and can be used for home appliance control5. Control DC or AC signals, can control 220V AC loads6. There is a normally open and a normally closed contacts7. Blue KF301 terminals to connect the control line is more convenient8. Weight: about 12.4 g9. Size: about 4.3 x 2.7 cmAbout the high level and low level trigger mode description:1. High level triggering refers to the triggering mode where there is a voltage between the signal input and ground, which can be understood as a mode of triggering by short-circuiting the signal input and the positive pole of VCC2. Low level trigger refers to the trigger mode where the voltage between the signal input and the ground is OV, which can be understood as a mode where the signal input is triggered by a short circuit with the negative pole of GNDSpecification: Package Weight One Package Weight 0.02kgs / 0.04lb One Package Size 8cm * 5cm * 3cm / 3.15inch * 1.97inch * 1.18inch Qty per Carton 360 Carton Weight 6.50kgs / 14.33lb Carton Size 50cm * 32cm * 32cm / 19.69inch * 12.6inch * 12.6inch Loading Container 20GP: 520 cartons * 360 pcs = 187200 pcs 40HQ: 1209 cartons * 360 pcs = 435240 pcs

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1. This module complies with international safety standards, with isolation slots between the control area and the load area2. Using relays, with power and relay action indication, absorb bright, disconnect not bright3. When there is signal at the signal input, the common terminal and the normally open terminal will conduct4. It can be used as a microcontroller development board module, and can be used for home appliance control5. Control DC or AC signals, can control 220V AC loads6. There is a normally open and a normally closed contacts7. Blue KF301 terminals to connect the control line is more convenient8. Weight: about 12.4 g9. Size: about 4.3 x 2.7 cmAbout the high level and low level trigger mode description:1. High level triggering refers to the triggering mode where there is a voltage between the signal input and ground, which can be understood as a mode of triggering by short-circuiting the signal input and the positive pole of VCC2. Low level trigger refers to the trigger mode where the voltage between the signal input and the ground is OV, which can be understood as a mode where the signal input is triggered by a short circuit with the negative pole of GNDSpecification: Package Weight One Package Weight 0.02kgs / 0.04lb One Package Size 8cm * 5cm * 3cm / 3.15inch * 1.97inch * 1.18inch Qty per Carton 360 Carton Weight 6.50kgs / 14.33lb Carton Size 50cm * 32cm * 32cm / 19.69inch * 12.6inch * 12.6inch Loading Container 20GP: 520 cartons * 360 pcs = 187200 pcs 40HQ: 1209 cartons * 360 pcs = 435240 pcs

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1. 15A current overload protection switch, real-time monitoring of electricity safety 2. Low-voltage start-up is more practical, with a trigger module to achieve 10V start-up, and no trigger device 60V start-up voltage is as low as possible 3. Input voltage: AC 220V 4. Output voltage: 0-220V adjustable (Voltmeter does not work when the output voltage is lower than 5V) 5. Limit power: 4000W (suitable for 1000W-2000W motor load) 6. Voltage adjustment range: 0-220V steplessly adjustable (under load conditions), step down to 0V, step up from 10V 7. Rated current: 9A 8. Limit current: 18ASpecification: Package Weight One Package Weight 0.58kgs / 1.28lb One Package Size 13cm * 13cm * 8cm / 5.12inch * 5.12inch * 3.15inch Qty per Carton 30 Carton Weight 17.40kgs / 38.36lb Carton Size 41cm * 28cm * 42cm / 16.14inch * 11.02inch * 16.54inch Loading Container 20GP: 553 cartons * 30 pcs = 16590 pcs 40HQ: 1283 cartons * 30 pcs = 38490 pcs

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1. 5V relay module2. It can be used as a single-chip development board module, and can be used as a home appliance control3. 5V-12V TTL control signal4. Control DC or AC signal, can control 220V AC load5. There is a normally open and a normally closed contact6. Has a power indicator7. There is a control indicator light, which is bright when closing, but not bright when disconnecting8. Transistor drive increases the relay coil, and the control pin is high impedance9. The control pin has a pull-down circuit to prevent the false action of the floating relaySpecification: Package Weight One Package Weight 0.10kgs / 0.23lb One Package Size 15cm * 12cm * 5cm / 5.91inch * 4.72inch * 1.97inch Qty per Carton 100 Carton Weight 11.00kgs / 24.25lb Carton Size 46cm * 32cm * 32cm / 18.11inch * 12.6inch * 12.6inch Loading Container 20GP: 566 cartons * 100 pcs = 56600 pcs 40HQ: 1314 cartons * 100 pcs = 131400 pcs

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1. Product weight: 230g 2. Product material: ABS / metal material 3. Applicable models (scene): GM,SUV off-road pickup truck 4. UPC: 707427709829 5. Includes accessories 1 x relay bracket, 41 pinsSpecification: Package Weight One Package Weight 0.29kgs / 0.64lb One Package Size 20cm * 12cm * 10cm / 7.87inch * 4.72inch * 3.94inch Qty per Carton 20 Carton Weight 5.98kgs / 13.18lb Carton Size 45cm * 38cm * 20cm / 17.72inch * 14.96inch * 7.87inch Loading Container 20GP: 779 cartons * 20 pcs = 15580 pcs 40HQ: 1810 cartons * 20 pcs = 36200 pcs

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1. It can detect the sound intensity of the surrounding environment. Note: This sensor can only identify the presence or absence of sound (according to the principle of vibration) and cannot identify the size of the sound or the sound of a specific frequency2. Adjustable sensitivity3. Working voltage: 3.3V-5V4. Output form: digital switch output (0 and 1 high and low level)5. Equipped with fixing bolt holes for easy installation6. Small board PCB size: 3.2cm x 1.7cm7. Module wiring instructions:-VCC external 3.3V-5V voltage (can be directly connected with 5v single-chip microcomputer and 3.3v single-chip microcomputer)-GND External GND-OUT small board switch output interface (0 and 1)Specification: Package Weight One Package Weight 0.10kgs / 0.23lb One Package Size 12cm * 10cm * 5cm / 4.72inch * 3.94inch * 1.97inch Qty per Carton 100 Carton Weight 11.00kgs / 24.25lb Carton Size 52cm * 36cm * 37cm / 20.47inch * 14.17inch * 14.57inch Loading Container 20GP: 385 cartons * 100 pcs = 38500 pcs 40HQ: 893 cartons * 100 pcs = 89300 pcs

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1. Voltage: DC12-24V2. Frequency: 50/60HZ3. Installation method: indoor, ceiling installation4. HF system: 5.8GHz CW radio wave, ISM band5. Transmitting power: less than 10mW6. Power: 70W (DC 12V)7. Detection angle: 360 degrees8. Distance: about 1-10m (radius) adjustable9. Working delay: 10 seconds to 3 minutes10. Light control illumination: about 2-2000 LUX11. Power consumption: about 0.5W12. Description: 807 with power output, 807K without power output13. Applicable environment: corridors, toilets, living rooms, corridors, warehouses, garages, etc.14. Installation reminder: the induction switch has a transmission blind spot in the central area. If it is installed in a small indoor environment (such as bathroom, kitchen), try to install it on the side or in the corner, so that the induction area will be more effective on the side. otherwise, the vertical center activity may not be sensed15. Size: about 7.6x4.1x3.9cmSpecification: Package Weight One Package Weight 0.08kgs / 0.19lb One Package Size 10cm * 6cm * 5cm / 3.94inch * 2.36inch * 1.97inch Qty per Carton 356 Carton Weight 30.00kgs / 66.14lb Carton Size 50cm * 50cm * 60cm / 19.69inch * 19.69inch * 23.62inch Loading Container 20GP: 177 cartons * 356 pcs = 63012 pcs 40HQ: 412 cartons * 356 pcs = 146672 pcs

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1. Operating voltage: 220V-240VAC2. Power load: 1200W3. Power frequency: 50/60HZ4. Time delay: 10 seconds~30 minutes5. Frequency system: 5.8Hz+/-75MHz CW radar6. Transmission power: 0.2mW7. Detection angle: 360 degrees8 Installation method: indoor, ceiling mounting9. Light source control: 10-2000LUX10. Detection distance: 2-10m11. Size: 95x95x42mm12. Is a motion detector with adjustable sensitivity and light detection time setting13. Based on the Doppler principle and radar technology with antenna and high performance microchip14. Can penetrate objects, so concealed installation is an option15. Not affected by temperature, such as infrared induction will be at a temperature of about 37 degrees will be time-sensitive, such as summer, indoor, outdoor, or other operating environment may be higher than this temperature16. Infrared induction, need to pass through the lens, induction range angle is small, the blind area is large, radar induction almost no blind area17. Infrared induction will be affected by air dust, dust will affect the induction distance18. Load power: 600W (resistive load, incandescent lamps and other resistive appliances) / 300W 19. Interface: 3 pole pluggable port (N, L, L), 1.5mm2 cable20. Do not reverse the zero and fire wires, otherwise some equipment may not workSpecification: Package Weight One Package Weight 0.09kgs / 0.21lb One Package Size 12cm * 12cm * 6cm / 4.72inch * 4.72inch * 2.36inch Qty per Carton 318 Carton Weight 30.00kgs / 66.14lb Carton Size 50cm * 50cm * 60cm / 19.69inch * 19.69inch * 23.62inch Loading Container 20GP: 177 cartons * 318 pcs = 56286 pcs 40HQ: 412 cartons * 318 pcs = 131016 pcs

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1. Onboard BME68X sensor to measure temperature, humidity, barometric pressure and gas2. Support I2C interface communication, can set I2C address, support I2C bus cascading3. Support SPI interface communication, the default is I2C interface, SPI can be enabled through CS chip selection4. On-board level conversion circuit, compatible with 3.3V/5V working level5. Provide complete supporting information manuals (RaspberryPi/Pico/Arduino/ESP32 sample programs and user manuals, etc.)Parameter:1. Function: BME680 can detect atmospheric pressure, ambient temperature, relative humidity, VOC gas change detection (combined with Bosch software package, can calculate IAQ air quality coefficient), BME688 can detect atmospheric pressure, ambient temperature, relative humidity, VOC and VSC Gas change detection (combined with Boschs software package, which can calculate IAQ air quality coefficient and integrate AI function)2. Communication interface: I2C and SPI3. Temperature measurement range: -40~85 degrees Celsius4. Temperature measurement accuracy: BME680: +/-1.0 degrees Celsius (0~65 degrees Celsius), BME688: +/-0.5 degrees Celsius (0~65 degrees Celsius)5. Humidity measurement range: 0~100%RH6. Humidity measurement accuracy: +/-3%RH7. Air pressure measurement range: 300~1100 hPa8. Air pressure measurement accuracy: +/-0.6hPa (0~65 degrees Celsius)9. Gas measurement: BME680: VOC gas change detection, BME688: VOC and VSC gas change detection10. Product size: 27 × 20mmPacking list:-Environment sensor x 1-PH2.0 6PIN cable 20cm × 1Specification: Package Weight One Package Weight 0.10kgs / 0.22lb One Package Size 8cm * 5cm * 3cm / 3.15inch * 1.97inch * 1.18inch Qty per Carton 356 Carton Weight 30.00kgs / 66.14lb Carton Size 56cm * 35cm * 21cm / 22.05inch * 13.78inch * 8.27inch Loading Container 20GP: 647 cartons * 356 pcs = 230332 pcs 40HQ: 1504 cartons * 356 pcs = 535424 pcs

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Parameter:1. After connecting, it needs to be charged for a while before outputting2. Charging voltage: DC7.4V3. Continuous discharge current: 6A4. Overcharge detection voltage: 4.25V x 25. Overcharge detection delay time: 1S6. Overcharge recovery voltage: 4.25V x 27. Over-discharge detection voltage: 2.3V--2.35V x 28. Over-discharge detection delay time: 100ms9. Over-discharge recovery voltage: 3.0V x 210. Overcurrent detection voltage: 200mv11. Overcurrent detection current: 6A12. Overcurrent detection delay time: 10ms13. Protection circuit (MOSPET): less than or equal to 60 megohms14. Working temperature range: -40 to 85 degrees Celsius15. Size: 90x45mmKind tips:1. Because (lithium battery protection board) belongs to the particularity of semi-finished products in electronic products; be sure to understand the wiring diagram before assembly; avoid wrong wiring2. Incorrect wiring or unintentional contact of wire ends with components may cause damageSpecification: Package Weight One Package Weight 0.06kgs / 0.14lb One Package Size 11cm * 5cm * 5cm / 4.33inch * 1.97inch * 1.97inch Qty per Carton 380 Carton Weight 13.00kgs / 28.66lb Carton Size 60cm * 40cm * 40cm / 23.62inch * 15.75inch * 15.75inch Loading Container 20GP: 277 cartons * 380 pcs = 105260 pcs 40HQ: 644 cartons * 380 pcs = 244720 pcs

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Parameter: 1. After connecting, it needs to be charged for a while before outputting 2. Charging voltage: DC4.2V 3. Continuous discharge current: 4A 4. Overcharge detection voltage: 4.28V 5. Overcharge detection delay time: 1S 6. Overcharge recovery voltage: hysteresis overcharge detection voltage 0.2V 7. Over-discharge detection voltage: 2.8V 8. Over-discharge detection delay time: 128ms 9. Over-discharge recovery voltage: 3.0V 10. Overcurrent detection voltage: 200mv 11. Overcurrent detection current: 4A 12. Delay time of overcurrent detection: 12ms megohm 14. Working temperature range: -40 to 50 degrees Celsius 15. Size: 15x3.1mm Kind tips: 1. Because (lithium battery protection board) belongs to the particularity of semi-finished products in electronic products; be sure to understand the wiring diagram before assembly; avoid wrong wiring 2. Incorrect wiring or unintentional contact of wire ends with components may cause damageSpecification: Package Weight One Package Weight 0.10kgs / 0.23lb One Package Size 5cm * 3cm * 1cm / 1.97inch * 1.18inch * 0.39inch Qty per Carton 3000 Carton Weight 30.00kgs / 66.14lb Carton Size 50cm * 30cm * 30cm / 19.69inch * 11.81inch * 11.81inch Loading Container 20GP: 592 cartons * 3000 pcs = 1776000 pcs 40HQ: 1375 cartons * 3000 pcs = 4125000 pcs

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