DIY Parts & Components

1. Amplifier output can only be connected to independent speakers or passive speakers2. The product does not include a power supply, you need to provide their own power supply DC9-24V, pay attention to the quality of the power supply, you need a pure DC power supply, with a complete rectifier filter, such as directly separate transformer will burn out3. In the case of sufficient audio input, power supply voltage/current is sufficient, there will be enough output power4. The higher the power supply voltage, the higher the output power, the lower the impedance of the speaker, the higher the output power5. Please make sure that the power of the adapted power supply is greater than the actual working power of the amplifierParameters:1. Bluetooth version: 5.02. Transmission distance: 15 meters without blocking3. Signal-to-noise ratio: greater than 95dB4. Input mode: USB+AUX+bluetooth5. Number of channels: left and right dual-channel (stereo)6. Amplifier chip: TPA3116D2 (with AM interference suppression)7. Adaptable power supply: DC9-24V/5A or above (the higher the voltage, the higher the output power)8. Adaptable Speaker: 20-200W, 2-8Ω9. Output power:- 20W x 2 @12V, 8Ω 35W x 2 @12V, 4Ω- 35W x 2 @19V, 8Ω 60W x 2 @19V, 4Ω- 50W x 2 @24V, 8Ω 90W x 2 @24V, 4Ω10. Protection mechanism: over-voltage, under-voltage, overheating, DC detection, short-circuit protection11. Size: 100 x 77 x 22mm12. Weight: 185g (including packaging)

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1. Bluetooth version: 5.0 (unobstructed, 15 meters)2. Input sensitivity: 500mV3. Input mode: AUX+Bluetooth4. Number of power channels: 2.1 channels5. Adaptable speaker: 20-100W, 4-8 ohms6. Protection mechanism: anti-reverse connection, overheating and overcurrent, short circuit protection.7. Adaptable power supply: DC 12-24V/5A or above (cannot be connected to 24V battery pack).8. Output power: less than 50W for left and right channel, less than 100W for subwoofer.9. Size: about 9.3 x 9 x 2.2cm10. Weight: about 185g (including packaging)Tip: In the case of enough audio input, enough power supply voltage/current, there will be enough output power, the higher the power supply voltage the higher the output power, the lower the impedance of the speaker the higher the output power, please make sure that the adapted power supply power is greater than the actual working power of the amplifier

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1. Bluetooth version: 5.0 (unobstructed, 15 meters)2. Signal-to-noise ratio: greater than 90dB3. Input mode: AUX+Bluetooth4. Number of channels: left and right dual-channel (stereo)5. Adaptable speaker: 15-100W, 4-8 ohms6. Protection mechanism: overheat/overcurrent/short-circuit protection7. Adaptable power supply:- 12V: 8 ohm/12W+12W, 4 ohm/20W+20W- 15V: 8 ohm/18W+18W, 4 ohm/30W+30W- 19V: 8 ohm/30W+30W, 4 ohm/30W+30W- 24V: 8 ohm/40W+40W, 4 ohm/50W+50W8. Size: about 8.9 x 6 x 2.1cm9. Weight: about 111g (including packaging)Tip: In the case of sufficient power supply voltage/current in the audio input will have enough output power, the higher the power supply voltage the higher the output power, the lower the impedance of the speaker the higher the output power, please make sure that the adapted power supply power is greater than the actual working power of the amplifier

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1. Silent fan: reduce the overall temperature of the module, for the power supply, amplifier chip, filter capacitors and other heat dissipation, reduce the temperature rise and the impact of temperature rise on the sound quality, to ensure that the components of the long-term stability of work2. Dial keys: easy to operate3. Bluetooth version: 5.0 (no cover, 15 meters)4. Input mode: AUX+Bluetooth+USB (dial-wheel button to switch modes and songs)5. Number of channels: 2.1 channels (left channel + right channel + subwoofer)6. Amplifier chip: TDA7498E7. Adaptable power supply: DC 15-36V (below 9V undervoltage protection, can also support 12V power supply)8. Adaptable speakers: 30-200W, 4-8 ohms.9. Output speakers: less than 160W for left and right channels, less than 220W for subwoofer10. Protection mechanism: anti-reverse connection/under-voltage/overheating/short-circuit protection11. Size: about 14.5 x 12.6 x 2.8cm12. Weight: about 327gAttention:1. Sufficient output power will only be available if the audio signal input is large enough and the power supply voltage/current is high enough2. The higher the power supply voltage, the higher the output power, the lower the speaker impedance, the higher the output power, please ensure that the power of the adapted power supply is greater than the actual working power of the amplifier

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1. Shell material: plastic2. Real material, good performance guide, high brightness wick, durable, beautiful and practical3. Special locking nut structure, the bottom of the dust cover, more convenient power, effectively reduce dust into, improve service life4. Powerful core, uniform illumination, obvious, energy-saving and environmentally friendly power supply, you can rest assured that charging5. Easy to install and use, simple installation, no tools, anyone can complete the installation in a few minutes6. Color: red, green, yellow7. Installation hole diameter: about 22 mm8. Weight: about 21.6 g9. Size: about 5.1 x 2 cm

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1. Shell material: plastic2. Real material, good performance guide, high brightness wick, durable, beautiful and practical3. Special locking nut structure, the bottom of the dust cover, more convenient power, effectively reduce dust into, improve service life4. Powerful core, uniform illumination, obvious, energy-saving and environmentally friendly power supply, you can rest assured that charging5. Easy to install and use, simple installation, no tools, anyone can complete the installation in a few minutes6. Color: red, green, yellow7. Installation hole diameter: about 22 mm8. Weight: about 21.6 g9. Size: about 5.1 x 2 cm

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1. Shell material: plastic2. Real material, good performance guide, high brightness wick, durable, beautiful and practical3. Special locking nut structure, the bottom of the dust cover, more convenient power, effectively reduce dust into, improve service life4. Powerful core, uniform illumination, obvious, energy-saving and environmentally friendly power supply, you can rest assured that charging5. Easy to install and use, simple installation, no tools, anyone can complete the installation in a few minutes6. Color: red, green, yellow7. Installation hole diameter: about 22 mm8. Weight: about 21.6 g9. Size: about 5.1 x 2 cm

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1. Shell material: plastic2. Real material, good performance guide, high brightness wick, durable, beautiful and practical3. Special locking nut structure, the bottom of the dust cover, more convenient power, effectively reduce dust into, improve service life4. Powerful core, uniform illumination, obvious, energy-saving and environmentally friendly power supply, you can rest assured that charging5. Easy to install and use, simple installation, no tools, anyone can complete the installation in a few minutes6. Color: red, green, yellow7. Installation hole diameter: about 22 mm8. Weight: about 21.6 g9. Size: about 5.1 x 2 cm

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1. Shell material: plastic2. Real material, good performance guide, high brightness wick, durable, beautiful and practical3. Special locking nut structure, the bottom of the dust cover, more convenient power, effectively reduce dust into, improve service life4. Powerful core, uniform illumination, obvious, energy-saving and environmentally friendly power supply, you can rest assured that charging5. Easy to install and use, simple installation, no tools, anyone can complete the installation in a few minutes6. Color: red, green, yellow7. Installation hole diameter: about 22 mm8. Weight: about 21.6 g9. Size: about 5.1 x 2 cm

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1. Shell material: plastic2. Real material, good performance guide, high brightness wick, durable, beautiful and practical3. Special locking nut structure, the bottom of the dust cover, more convenient power, effectively reduce dust into, improve service life4. Powerful core, uniform illumination, obvious, energy-saving and environmentally friendly power supply, you can rest assured that charging5. Easy to install and use, simple installation, no tools, anyone can complete the installation in a few minutes6. Color: red, green, yellow7. Installation hole diameter: about 22 mm8. Weight: about 21.6 g9. Size: about 5.1 x 2 cm

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1. Purpose: suitable for DC-DC-AC two-stage power conversion architecture or DC-AC single-stage industrial frequency transformer boost converter2. Frequency: 23.4KHz3. External 12MHz crystal oscillator, can realize 50Hz or 60Hz pure sinusoidal inverter chip, with high precision, anti-interference and harmonic4. CMOS technology, integrated SPWM sine generator, dead time control circuit, amplitude factor multiplier, soft start circuit, protection circuit, RS232 serial communication interface and 12832 serial LCD driver module5. Unipolar and bipolar modulation, real-time processing of voltage, current, temperature feedback6. With deadband control, the pin can be set to 4 deadband7. Pin setting soft start mode 1S response time8. Serial communication to set the output voltage, frequency and other parameters

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1. Protection class: IP622. Operating frequency: 20 times/minute3. Rated insulation voltage: 415V4. Rated shock withstand voltage: 2.5kV5. Rated voltage: AC380V/DC220V6. Rated operating current: AC0.8A/DC0.16A7. Environmental temperature: -5-40 degrees Celsius8. Action form: self-reset9. Operation mode: TBLX-ME/8101: universal type III, TBLX-ME/8104: roller rotating arm, TBLX-ME/8107: adjustable rotating lever, TBLX-ME/8108: adjustable roller rotating arm, TBLX-ME/8111: straight pressure plunger type, TBLX-ME/8112: straight pressure plunger cross-mounted roller, TBLX-ME/8122：direct pressure plunger vertical mounted roller，TBLX-ME/8166：universal type I，TBLX-ME/9101：universal type IIIFeatures:1. Complete models, multi-functions, touching sensitive, dustproof insulated junction port, self-resetting multi-functions2. Standardized, stable and reliable performance, fine workmanship and strict quality.3. YBLX-ME series travel switches are suitable for AC 50Hz or 60Hz, voltage 380V, DC voltage 220V control circuits, for the travel control of the movement mechanism, the change of movement direction or speed, the automatic control of the machine tool, the limiting action of the movement mechanism and the control of the travel or the program

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1. Protection class: IP622. Operating frequency: 20 times/minute3. Rated insulation voltage: 415V4. Rated shock withstand voltage: 2.5kV5. Rated voltage: AC380V/DC220V6. Rated operating current: AC0.8A/DC0.16A7. Environmental temperature: -5-40 degrees Celsius8. Action form: self-reset9. Operation mode: TBLX-ME/8101: universal type III, TBLX-ME/8104: roller rotating arm, TBLX-ME/8107: adjustable rotating lever, TBLX-ME/8108: adjustable roller rotating arm, TBLX-ME/8111: straight pressure plunger type, TBLX-ME/8112: straight pressure plunger cross-mounted roller, TBLX-ME/8122：direct pressure plunger vertical mounted roller，TBLX-ME/8166：universal type I，TBLX-ME/9101：universal type IIIFeatures:1. Complete models, multi-functions, touching sensitive, dustproof insulated junction port, self-resetting multi-functions2. Standardized, stable and reliable performance, fine workmanship and strict quality.3. YBLX-ME series travel switches are suitable for AC 50Hz or 60Hz, voltage 380V, DC voltage 220V control circuits, for the travel control of the movement mechanism, the change of movement direction or speed, the automatic control of the machine tool, the limiting action of the movement mechanism and the control of the travel or the program

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1. Protection class: IP622. Operating frequency: 20 times/minute3. Rated insulation voltage: 415V4. Rated shock withstand voltage: 2.5kV5. Rated voltage: AC380V/DC220V6. Rated operating current: AC0.8A/DC0.16A7. Environmental temperature: -5-40 degrees Celsius8. Action form: self-reset9. Operation mode: TBLX-ME/8101: universal type III, TBLX-ME/8104: roller rotating arm, TBLX-ME/8107: adjustable rotating lever, TBLX-ME/8108: adjustable roller rotating arm, TBLX-ME/8111: straight pressure plunger type, TBLX-ME/8112: straight pressure plunger cross-mounted roller, TBLX-ME/8122：direct pressure plunger vertical mounted roller，TBLX-ME/8166：universal type I，TBLX-ME/9101：universal type IIIFeatures:1. Complete models, multi-functions, touching sensitive, dustproof insulated junction port, self-resetting multi-functions2. Standardized, stable and reliable performance, fine workmanship and strict quality.3. YBLX-ME series travel switches are suitable for AC 50Hz or 60Hz, voltage 380V, DC voltage 220V control circuits, for the travel control of the movement mechanism, the change of movement direction or speed, the automatic control of the machine tool, the limiting action of the movement mechanism and the control of the travel or the program

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1. Protection class: IP622. Operating frequency: 20 times/minute3. Rated insulation voltage: 415V4. Rated shock withstand voltage: 2.5kV5. Rated voltage: AC380V/DC220V6. Rated operating current: AC0.8A/DC0.16A7. Environmental temperature: -5-40 degrees Celsius8. Action form: self-reset9. Operation mode: TBLX-ME/8101: universal type III, TBLX-ME/8104: roller rotating arm, TBLX-ME/8107: adjustable rotating lever, TBLX-ME/8108: adjustable roller rotating arm, TBLX-ME/8111: straight pressure plunger type, TBLX-ME/8112: straight pressure plunger cross-mounted roller, TBLX-ME/8122：direct pressure plunger vertical mounted roller，TBLX-ME/8166：universal type I，TBLX-ME/9101：universal type IIIFeatures:1. Complete models, multi-functions, touching sensitive, dustproof insulated junction port, self-resetting multi-functions2. Standardized, stable and reliable performance, fine workmanship and strict quality.3. YBLX-ME series travel switches are suitable for AC 50Hz or 60Hz, voltage 380V, DC voltage 220V control circuits, for the travel control of the movement mechanism, the change of movement direction or speed, the automatic control of the machine tool, the limiting action of the movement mechanism and the control of the travel or the program

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1. Rated voltage: 380VAC / 220VDC2. Rated current: 5A3. Protection grade: IP524. Flame retardant shell, silver contacts, dustproof insulation, lower consumption5. Reliable quality, wear-resistant and durable, adopting strict requirements to grasp the technology6. Weight: about 110 g7. Size: about 7.2 x 2.5 x 6.8 cm

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1. Protection class: IP622. Operating frequency: 20 times/minute3. Rated insulation voltage: 415V4. Rated shock withstand voltage: 2.5kV5. Rated voltage: AC380V/DC220V6. Rated operating current: AC0.8A/DC0.16A7. Environmental temperature: -5-40 degrees Celsius8. Action form: self-reset9. Operation mode: TBLX-ME/8101: universal type III, TBLX-ME/8104: roller rotating arm, TBLX-ME/8107: adjustable rotating lever, TBLX-ME/8108: adjustable roller rotating arm, TBLX-ME/8111: straight pressure plunger type, TBLX-ME/8112: straight pressure plunger cross-mounted roller, TBLX-ME/8122：direct pressure plunger vertical mounted roller，TBLX-ME/8166：universal type I，TBLX-ME/9101：universal type IIIFeatures:1. Complete models, multi-functions, touching sensitive, dustproof insulated junction port, self-resetting multi-functions2. Standardized, stable and reliable performance, fine workmanship and strict quality.3. YBLX-ME series travel switches are suitable for AC 50Hz or 60Hz, voltage 380V, DC voltage 220V control circuits, for the travel control of the movement mechanism, the change of movement direction or speed, the automatic control of the machine tool, the limiting action of the movement mechanism and the control of the travel or the program

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1. Protection class: IP622. Operating frequency: 20 times/minute3. Rated insulation voltage: 415V4. Rated shock withstand voltage: 2.5kV5. Rated voltage: AC380V/DC220V6. Rated operating current: AC0.8A/DC0.16A7. Environmental temperature: -5-40 degrees Celsius8. Action form: self-reset9. Operation mode: TBLX-ME/8101: universal type III, TBLX-ME/8104: roller rotating arm, TBLX-ME/8107: adjustable rotating lever, TBLX-ME/8108: adjustable roller rotating arm, TBLX-ME/8111: straight pressure plunger type, TBLX-ME/8112: straight pressure plunger cross-mounted roller, TBLX-ME/8122：direct pressure plunger vertical mounted roller，TBLX-ME/8166：universal type I，TBLX-ME/9101：universal type IIIFeatures:1. Complete models, multi-functions, touching sensitive, dustproof insulated junction port, self-resetting multi-functions2. Standardized, stable and reliable performance, fine workmanship and strict quality.3. YBLX-ME series travel switches are suitable for AC 50Hz or 60Hz, voltage 380V, DC voltage 220V control circuits, for the travel control of the movement mechanism, the change of movement direction or speed, the automatic control of the machine tool, the limiting action of the movement mechanism and the control of the travel or the program

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1. Protection class: IP622. Operating frequency: 20 times/minute3. Rated insulation voltage: 415V4. Rated shock withstand voltage: 2.5kV5. Rated voltage: AC380V/DC220V6. Rated operating current: AC0.8A/DC0.16A7. Environmental temperature: -5-40 degrees Celsius8. Action form: self-reset9. Operation mode: TBLX-ME/8101: universal type III, TBLX-ME/8104: roller rotating arm, TBLX-ME/8107: adjustable rotating lever, TBLX-ME/8108: adjustable roller rotating arm, TBLX-ME/8111: straight pressure plunger type, TBLX-ME/8112: straight pressure plunger cross-mounted roller, TBLX-ME/8122：direct pressure plunger vertical mounted roller，TBLX-ME/8166：universal type I，TBLX-ME/9101：universal type IIIFeatures:1. Complete models, multi-functions, touching sensitive, dustproof insulated junction port, self-resetting multi-functions2. Standardized, stable and reliable performance, fine workmanship and strict quality.3. YBLX-ME series travel switches are suitable for AC 50Hz or 60Hz, voltage 380V, DC voltage 220V control circuits, for the travel control of the movement mechanism, the change of movement direction or speed, the automatic control of the machine tool, the limiting action of the movement mechanism and the control of the travel or the program

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1. Protection class: IP622. Operating frequency: 20 times/minute3. Rated insulation voltage: 415V4. Rated shock withstand voltage: 2.5kV5. Rated voltage: AC380V/DC220V6. Rated operating current: AC0.8A/DC0.16A7. Environmental temperature: -5-40 degrees Celsius8. Action form: self-reset9. Operation mode: TBLX-ME/8101: universal type III, TBLX-ME/8104: roller rotating arm, TBLX-ME/8107: adjustable rotating lever, TBLX-ME/8108: adjustable roller rotating arm, TBLX-ME/8111: straight pressure plunger type, TBLX-ME/8112: straight pressure plunger cross-mounted roller, TBLX-ME/8122：direct pressure plunger vertical mounted roller，TBLX-ME/8166：universal type I，TBLX-ME/9101：universal type IIIFeatures:1. Complete models, multi-functions, touching sensitive, dustproof insulated junction port, self-resetting multi-functions2. Standardized, stable and reliable performance, fine workmanship and strict quality.3. YBLX-ME series travel switches are suitable for AC 50Hz or 60Hz, voltage 380V, DC voltage 220V control circuits, for the travel control of the movement mechanism, the change of movement direction or speed, the automatic control of the machine tool, the limiting action of the movement mechanism and the control of the travel or the program

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1. Protection class: IP622. Operating frequency: 20 times/minute3. Rated insulation voltage: 415V4. Rated shock withstand voltage: 2.5kV5. Rated voltage: AC380V/DC220V6. Rated operating current: AC0.8A/DC0.16A7. Environmental temperature: -5-40 degrees Celsius8. Action form: self-reset9. Operation mode: TBLX-ME/8101: universal type III, TBLX-ME/8104: roller rotating arm, TBLX-ME/8107: adjustable rotating lever, TBLX-ME/8108: adjustable roller rotating arm, TBLX-ME/8111: straight pressure plunger type, TBLX-ME/8112: straight pressure plunger cross-mounted roller, TBLX-ME/8122：direct pressure plunger vertical mounted roller，TBLX-ME/8166：universal type I，TBLX-ME/9101：universal type IIIFeatures:1. Complete models, multi-functions, touching sensitive, dustproof insulated junction port, self-resetting multi-functions2. Standardized, stable and reliable performance, fine workmanship and strict quality.3. YBLX-ME series travel switches are suitable for AC 50Hz or 60Hz, voltage 380V, DC voltage 220V control circuits, for the travel control of the movement mechanism, the change of movement direction or speed, the automatic control of the machine tool, the limiting action of the movement mechanism and the control of the travel or the program

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1. Output form: DC NPN three-wire normally open2. Detection distance: about 8mm3. Detecting object: metal object4. Current: 300mA5. Power supply voltage: DC12-24V (6-36V)6. Weight: about 86.2 g7. Wire length: about 1.1mFeatures:1. Proximity switch detects metal objects, the detection distance is about 8mm (when the proximity switch detects metal objects, the red light at the end will light up)2. Built-in smart sensor chip on the top of the product, more sensitive to detect metal objects3. Threaded design, solid and reliable, nickel-plated brass4. Selection of wire, the standard line length of about 1.1 meters, the application of thicker cable, durable, good conductivity5. NPN: indicates a common positive voltage, negative voltage output; NPN NO: indicates that the normal is normally open, when the object is detected, the black line outputs a negative voltage signal

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1. Connection material: copper2. Current: 9A3. Voltage: 0+-36V4. Temperature resistance: -20-120 degrees celsius5. Applicable outer diameter: less than 2.1mm6. Good abrasion resistance, strong oxidation resistance7. G applicable AWG cross-sectional area: less than 0.75m-0.50 square meters; D applicable AWG cross-sectional area: less than 0.50-0.32 square meters8. Weight:- H1: 1g- H2: 1.5g- T1: 1.1g- T2: 2g

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1. Connection material: copper2. Current: 9A3. Voltage: 0+-36V4. Temperature resistance: -20-120 degrees celsius5. Applicable outer diameter: less than 2.1mm6. Good abrasion resistance, strong oxidation resistance7. G applicable AWG cross-sectional area: less than 0.75m-0.50 square meters; D applicable AWG cross-sectional area: less than 0.50-0.32 square meters8. Weight:- H1: 1g- H2: 1.5g- T1: 1.1g- T2: 2g

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1. Connection material: copper2. Current: 9A3. Voltage: 0+-36V4. Temperature resistance: -20-120 degrees celsius5. Applicable outer diameter: less than 2.1mm6. Good abrasion resistance, strong oxidation resistance7. G applicable AWG cross-sectional area: less than 0.75m-0.50 square meters; D applicable AWG cross-sectional area: less than 0.50-0.32 square meters8. Weight:- H1: 1g- H2: 1.5g- T1: 1.1g- T2: 2g

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1. Connection material: copper2. Current: 9A3. Voltage: 0+-36V4. Temperature resistance: -20-120 degrees celsius5. Applicable outer diameter: less than 2.1mm6. Good abrasion resistance, strong oxidation resistance7. G applicable AWG cross-sectional area: less than 0.75m-0.50 square meters; D applicable AWG cross-sectional area: less than 0.50-0.32 square meters8. Weight:- H1: 1g- H2: 1.5g- T1: 1.1g- T2: 2g

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1. Connection material: copper2. Current: 9A3. Voltage: 0+-36V4. Temperature resistance: -20-120 degrees celsius5. Applicable outer diameter: less than 2.1mm6. Good abrasion resistance, strong oxidation resistance7. G applicable AWG cross-sectional area: less than 0.75m-0.50 square meters; D applicable AWG cross-sectional area: less than 0.50-0.32 square meters8. Weight:- H1: 1g- H2: 1.5g- T1: 1.1g- T2: 2g

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1. Connection material: copper2. Current: 9A3. Voltage: 0+-36V4. Temperature resistance: -20-120 degrees celsius5. Applicable outer diameter: less than 2.1mm6. Good abrasion resistance, strong oxidation resistance7. G applicable AWG cross-sectional area: less than 0.75m-0.50 square meters; D applicable AWG cross-sectional area: less than 0.50-0.32 square meters8. Weight:- H1: 1g- H2: 1.5g- T1: 1.1g- T2: 2g

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1. Connection material: copper2. Current: 9A3. Voltage: 0+-36V4. Temperature resistance: -20-120 degrees celsius5. Applicable outer diameter: less than 2.1mm6. Good abrasion resistance, strong oxidation resistance7. G applicable AWG cross-sectional area: less than 0.75m-0.50 square meters; D applicable AWG cross-sectional area: less than 0.50-0.32 square meters8. Weight:- H1: 1g- H2: 1.5g- T1: 1.1g- T2: 2g

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1. Connection material: copper2. Current: 9A3. Voltage: 0+-36V4. Temperature resistance: -20-120 degrees celsius5. Applicable outer diameter: less than 2.1mm6. Good abrasion resistance, strong oxidation resistance7. G applicable AWG cross-sectional area: less than 0.75m-0.50 square meters; D applicable AWG cross-sectional area: less than 0.50-0.32 square meters8. Weight:- H1: 1g- H2: 1.5g- T1: 1.1g- T2: 2g

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1. Power supply range: 3.7-5.5V2. Exquisite double-layer board design, large area of copper, stable and reliable3. Anti-static bag packaging, to avoid static electricity damage to the product on the way to the shipment4. Weight: about 10.5 g5. Size: about 4.5 x 3.6 cmModule highlights:1. Strong sound quality, on-board 2W mono amplifier (5V power supply up to 3W) directly connected to the speakers (recommended with 4Ω 3W speakers), 3.5mm gold-plated headphone socket can be connected to headphones or external audio2. With MicroUSB power supply interface, through the cell phone cable using mobile power or USB charger power supply, can also be used 3.7V lithium battery, USB 5V power supply3. Support TF card (cell phone internal memory card), U disk playback mode4. With speaker terminals without welding, convenient wiring, modular design for easy modification5. Supporting MP3 format, power on automatic playback, playback status when the red LED indicator update6. Support U disk (tested 32G), TF card (tested 16G) playback mode; power on the default TF card mode, if the TF card does not exist automatically jump to the U disk mode, and the two devices are installed, you can manually set up the playback mode, please see the key operation instructions for details7. Keys can be adjusted up and down the track switching, volume + -, pause / play, mode switching, key to set a single song / full cycle, power on the default full cycle, press the Repeat key to replace the cycle modeKey operation description:1. Prev/V--key: short press to switch to the previous song, long press for the volume decreasing2. Next/v++ key: short press to switch to the next song, long press to increase the volume3. P/P/Mode key: short press for play/pause switch, long press for U disk, TF card mode selection4. Repeat key: short press for single song / full song cycle switch (no long press function)Attention:1. Long press time is about 2s2. If you use U disk mode, 5V power supply is recommended, some U disk does not support 3.7V power supply

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1. Working voltage: AC 220V2. Regulation voltage: AC 10-220V3. Efficiency: more than 90 percent4. Power: 4000W (resistive load limit power), long time should reduce power use5. Weight: about 133.2 g6. Size: about 8.5 x 5.5 x 3.8 cm, the knob hole is about 6mmFunctional features:1. 41A thyristor, 1.6mm thick FR-4 high-temperature circuit board, circuit design is reasonable, and the use of larger and thicker welding circuit design, even if the high current through the enough to cope with the use of a more reliable2. Using the standard 3 of the 4-position terminal block, two in two out more convenient wiring, with a shell with a fuse regulator, installation is more convenient, more suitable for families and inconvenient installation of factories and enterprises3. The circuit has been improved through a number of technical improvements, the use of dual capacitor design (safety gauge capacitors + metal film capacitors), effectively absorbing surges and voltage spikes, more effective protection of the SCR, the use of more efficient and more4. External 1.5 thick aluminum and stainless steel molding stamping, beautiful and generous, more suitable for home thermostat speed control and industrial enterprises, beautiful and generous, the use of long time will not rust and other appearance problems5. 4000W voltage regulator, technology upgrades, voltage range from 10V-220V smoothly adjustable, more suitable for industrial enterprises that need low voltage to drive the heating wire, such as cutting styrofoam, pearl cotton, raincoat production and so onAttention:1. Pay attention to connect the load before regulating the voltage2. Thyristor is mainly used for resistive loads (electric filament incandescent lamps, etc.), single-phase AC motors can also be most, but does not guarantee that all can be other types of loads, please buyers to confirm their own, the fuse is not, there is a reaction time, if the current is too large, in addition to burn the fuse, the module may also burn out3. Pay attention to the plastic cover on the connector due to the installation of the shell, can not be completely lifted, the screwdriver should be biased point screwing, in addition to lift to be careful, too much force is easy to break the cover, courier transportation may also be crushed for wearing parts, but will not affect the module to use

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1. Power supply range: 3.7-5.5V2. Exquisite double-layer board design, large area of copper, stable and reliable3. Anti-static bag packaging, to avoid static electricity damage to the product on the way to the shipment4. Weight: about 10.5 g5. Size: about 4.5 x 3.6 cmModule highlights:1. Strong sound quality, on-board 2W mono amplifier (5V power supply up to 3W) directly connected to the speakers (recommended with 4Ω 3W speakers), 3.5mm gold-plated headphone socket can be connected to headphones or external audio2. With MicroUSB power supply interface, through the cell phone cable using mobile power or USB charger power supply, can also be used 3.7V lithium battery, USB 5V power supply3. Support TF card (cell phone internal memory card), U disk playback mode4. With speaker terminals without welding, convenient wiring, modular design for easy modification5. Supporting MP3 format, power on automatic playback, playback status when the red LED indicator update6. Support U disk (tested 32G), TF card (tested 16G) playback mode; power on the default TF card mode, if the TF card does not exist automatically jump to the U disk mode, and the two devices are installed, you can manually set up the playback mode, please see the key operation instructions for details7. Keys can be adjusted up and down the track switching, volume + -, pause / play, mode switching, key to set a single song / full cycle, power on the default full cycle, press the Repeat key to replace the cycle modeKey operation description:1. Prev/V--key: short press to switch to the previous song, long press for the volume decreasing2. Next/v++ key: short press to switch to the next song, long press to increase the volume3. P/P/Mode key: short press for play/pause switch, long press for U disk, TF card mode selection4. Repeat key: short press for single song / full song cycle switch (no long press function)Attention:1. Long press time is about 2s2. If you use U disk mode, 5V power supply is recommended, some U disk does not support 3.7V power supply

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1. Bluetooth version: 5.02. Operating voltage: DC8-24V3. Transmission distance: 15 meters (visible and unobstructed)4. Number of channels: dual-channel (stereo)5. Adaptable speaker power (30W-150): 4 ohms (8-12V power supply), 8 ohms (8-24V power supply), 16 ohms (8-24V power supply)6. Module protection mechanism: reverse power supply protection, short-circuit protection, self-recovery overheating protection7. Note: to improve the performance of the module, it is recommended to work more than 20W x 2 application scenarios under the amplifier chip plus heat dissipation8. Anti-static bag packaging, acrylic panels have a protective film, please tear off when assembling9. Module size: about 5 x 3.3 cmOperating instructions:1. After turning on the power, the blue indicator light will flash quickly to enter the Bluetooth mode2. Enter pairing mode and wait for pairing after announcing the beep3. Mobile phone bluetooth search to XY-P15W (amplifier board device name), click XY-P15W connection4. After successful connection, play the tone, the indicator light will be on, you can play the music on your cell phone, and the indicator light will flash slowly when playing the music5. Bluetooth disconnect the amplifier board to prepare for the next pairing, and play the tone after entering the pairing mode waiting for the pairingPrecautions for use:1. Amplifier board to use as far away from WIFI signals (router)2. Recommended power supply voltage DC 8-24V, more than 26V, the chip will be burned3. Connect 4 ohm speakers when the power supply does not exceed 12V, connect 8 ohm speakers when the power supply does not exceed 24V4. Recommended power supply current is more than 2A5. Module working power more than 20W x 2, need to add heat sinks6. The speaker cable should not be too long, ensure that 1 meter or less is suitable7. Pay attention to electrostatic protection, contact the amplifier board before the need to release the hand of static electricity, to avoid static electricity will chip breakdown, bluetooth chip is more sensitive to static electricity8. It is recommended to adapt to the speaker rated power 30W and above, to avoid burning the speaker heat

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1. Power supply range: 5V DC2. Operating voltage: 2.5V-5.5V 3. Output Power: 3W x 2 (5V 4Ω)4. PAM8403 is a small digital amplifier chip, high-definition sound quality highlights the advantages of digital chips5. Circuit using a reasonable peripheral configuration, power supply filter upgrade to 470uf, 1.6mm fiberglass plate, the amplifier board to do the meticulous6. Output 3W + 3W high-fidelity sound quality, potentiometer using the original anti-surface body, life expectancy of up to 15 years, potentiometer with a switch can be counterclockwise directly cut off the power supply. 7. Please ensure that the power supply voltage does not exceed 5.5V, and please do not reverse the positive (+) negative (-) polarity, otherwise it will burn the circuit board!8. Size: with potentiometer about 29.5 x 20.2 x 15 mm, module about 21 x 18 mm

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1. Power supply voltage: 9-12VDC input2. Waveforms: square, sine and triangle waves3. Impedance: about 600 ohms4. Frequency: 1Hz-1MHz5. Sine wave:-Amplitude: 0-3V (9V DC input)-Distortion: Less than 1 percent (at 1kHz)-Flatness: +0.05dB 1Hz-100kHz6. Square wave:-Amplitude: 8V (no load 9V DC input)-Rise Time: Less than 50ns (at 1kHz)-Fall time: less than 30ns (at 1kHz)-Symmetry: Less than 5 percent (at 1kHz)7. Triangle wave:-Amplitude: 0-3V (at 9V DC input) -Linearity: Less than 1 percent (up to 100kHz) 10mACircuit features:1. It can generate sine wave, triangle wave and square wave2. Frequency can be from 1HZ-1MHZ, frequency, amplitude adjustable3. 5-bit precision resolution, frequency adjustment with coarse and fine tuning4. Wide range of power supply, can use external power supply 9-12V or 9V battery 5. All direct insertion components, the number of components is small, simple installation and commissioningPrecautions for soldering and mounting, please follow the steps below:1. Components are welded to the front panel, from low to high principle, that is, the first welding low-end components, such as capacitors, resistors, diodes, etc.2. Welding IC sockets, terminals, and finally the power socket, adjustable potentiometer3. Behind the use of diagonal pliers to try to cut short pinsDebugging steps:1. After completing the welding of the IC, XR2206, pay attention to the direction of the IC, the insertion may damage the chip2. Check whether the IC is reverse, such as reverse, please correct in a timely manner3. Insert the power supply, the power supply is 5.5 x 2.1 port, inside and outside the negative pole, the power supply voltage is 9-12V, more than 12V waveform may be unstableSteps for use:1. Insert J1 jumper cap, SIN/TRI blue terminal output sine wave (note that J1, J2 can only be inserted into one of the)2. Insert J2 jumper cap, SIN/TRI blue terminal output triangle wave (note that J1, J2 can only be inserted into one)3. SQU blue terminal outputs pulse4. AMP: sine wave, triangle amplitude adjustment5. FINE: frequency fine-tuning6. Coarse: frequency coarse adjustment

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Technical Parameters1. Model: LDTR-WG02672. Potentiometer: Resistance B100K; opening 8mm3. Input voltage: DC10-60V4. Output voltage: 0-100% of input voltage5. Control power: 12V*10A=120W, 24V*10A=240W,...6. Rated current: 10A7. Maximum current: 20A8. Speed range: 5%-100%9. Size: 88mm*59mm*35mm10. PWM frequency: 25kHz11. Package included: 1 x DC 12V 24V 36V 48V PWM DC Motor Speed ControllerPrecautions and instructions for use1. DC motor speed controller input is DC, not directly connected to AC, otherwise it will burn out2. The positive and negative DC power supply can not be reversed, otherwise the governor will be damaged.3. The motor can be divided into positive and negative. When the direction of movement is inconsistent with the expectation,4. the direction can be changed by adjusting the line sequence.5. The potentiometer knob can change the duty cycle of the speed control output, thus changing the motor speed.

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1. Color: Black 2. Material: PA66 3. Frequency: 50/60HZ 4. Current: 0.14A 5. Voltage: 220-240V 6. Suitable for DIY project 7. Dimensions: 12.0 cm x 12.0 cm x 3.8 cm 8. Weight: 377g

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1. Color: Black 2. Material: PA66 3. Current: 0.18A 4. Voltage: DC 12V 5. Cable length: 20cm 6. Dimensions: 8.0 x 7.5 x 2.5cm 7. Weight: 69g

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1. Model: 24T1812 2. Input: AC 16V-28V 3. Output: DC 12V 1.5A 4. Dimensions: 7.5 x 3 x 2cm 5. Weight: 38g

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1. These units can be used for starting and stopping, or the connection and break of devices and electrical machinery. The product could also achieve the requirements of various kinds of special control procedures. 2. Each device connected will need to be powered by its own power source (there is no voltage output from the switch, it only acts as a connecter/dis-connecter for an existing live circuit). 3. If using a 24V device it can be wired in parallel with the switch power supply. Ideal use in 1. Vehicle central locking systems 2. Garage doors 3. Electronic gates 4. TV, Motors, Fans, Cameras, Video Signals, Audio Signals, RC applications, Electric 5. Doors/ Locks/ Windows/ Curtains and more 6. Lightweight and portable 7. Easy to install and use

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1. Circuit marker lets you draw electric circuits on circuit paper. Draw your own circuit on paper. 2. Make jumpers and shield electronics. 3. Make electronic circuits easily, so it''s good for education materials. 4. Provide a smooth pen like writing experience in a smooth paper. 5. Instantly magical pen DIY for student maker.

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1. Compact, lightweight, and durable rubber material can effectively protect your camera module. 2. Provides powerful protection against dust, scratches and damage to the camera module. 3. The black soft rubber sleeve provides a comfortable touch and provides better friction, which is not easy to slip from the hand, making it easy for buyers to use. 4. At the same time, a port is reserved on the protective case. 5. Package list: Soft rubber sleeve case x 1

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1. Weatherproof junction boxes, perfect for outdoor use. 2. The IP65 rating, great protection joining wires inside from rain and water. 3. The plastic screws on the lid will not rust and be easy to loosen. 4. The sides of the box are plain to allow you to drill your own cable entries where needed.

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About The ProductHardware Specifications 1. Chipset: ESP32, dual-core MCU, PMU power management 2. FLASH: QSPI flash 16MB 3. SRAM: 520 KB SRAM / PSRAM 8MB 4. Button: Power key 5. USB to TTL: CP2104 6.On-board clock: 40MHz crystal oscillator 7. Working voltage: 2.7V-3.6V 8. Working temperature range: -40 degree C ~ +85 degree C 9. Weight: 58.5g 10. Display: 1.54 inch LCD capacitive touch screen 11. Sensor: BMA423 three-axis accelerometer, built-in step counting algorithm, activity recognition / tracking, advanced gesture recognition. 12. RTC clock: PCF8563 Power Supply Specifications 1. Power Supply: Micro USB (5V/1A) 2. Charging current: The charging current is programmable and self-adjustable 3. Battery: Lithium battery (not included) Wi-Fi 1. Standard: FCC/CE-RED/IC/TELEC/KCC/SRRC/NCC(esp32 chip) 2. Protocol: 802.11 b/g/n(802.11n, speed up to150Mbps)A-MPDU and 3. A-MSDU polymerization, support 0.4uS Protection interval 4. Frequency range: 2.4GHz~2.5GHz(2400M~2483.5M) 5. Transmit Power: 22dBm 6. Communication distance: 300m Bluetooth 1. Protocol: Meet bluetooth v4.2BR/EDR and BLE standard 2. Radio frequency: With -97dBm sensitivity NZIF receiver Class-1,Class-2&Class-3 emitter AFH 3. Audio frequency: CVSD&SBC audio frequency Software specification 1. Wi-Fi Mode: Station/SoftAP/SoftAP+Station/P2P 2. Security mechanism: WPA/WPA2/WPA2-Enterprise/WPS 3. Encryption Type: AES/RSA/ECC/SHA 4. Firmware upgrade: UART download/OTA???Through network/host to download and write firmware 5. Software Development: Support cloud server development /SDK for user firmware development 6. Networking protocol: IPv4, IPv6, SSL, TCP, UDP, HTTP, FTP, MQTT 7. User Configuration: AT + Instruction set, cloud server, android/iOS app 8. OS: FreeRTOST-Watch Function Configuration1. Main chip: ESP32 2. 1.54 inch LCD capacitive touch screen: ST7789 3. PMU power management: AXP202 4. Touch screen chip: FT6236U 5. Triaxial accelerometer: BMA423 6. Lithium battery 7. RTC clock module: PCF8563 8. Vibration motor 9. Speaker 10. Infrared signal sensor 11. PDM microphoneESP-32 Master1. Flash: 16MB 2. P SRAM: 8MB 3. Memory: 520kiB SRAM 4. Wireless connection: Wi-Fi 802.11b/g/n 5. Bluetooth: V4.2 BR/EDR and BLE 6. Charging method: Micro USB 5V 7. Working voltage: 3.3V 8. CPU: Xtensa dual-core 32-bit LX6 micro processor, operating frequency is 240MHz, up to 600 DMIPS ultra-low power consumption coprocessor

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1. Shaft: 6.35 x 8mm 2. Length: 26mm 3. Diameter: 20mm 4. Material: aluminium

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1. Shaft usage: 6mm x 8mm 2. Length: 25mm 3. Diameter: 20mm 4. Material: Aluminum

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1. Shaft usage: 6mm x 10mm 2. Length: 25mm 3. Diameter: 20mm 4. Material: Aluminum

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