High-quality ultra-small optocoupler is used, with strong anti-interference ability, stable performance, and complete isolation of input signal and output.Input signal: PWM signal between 3~20VOutput capacity: DC 3.7V~27V, each current within 10APWM frequency: 0~200HzIndicator light: with input signal and output indicator Application description: The output terminal can control high-power equipment, motors, light bulbs, LED light strips, DC motors, Micro-water pumps, solenoid valves, etc., and can input PWM to control motor speed, lamp brightness, etc.Module interface description:DC+: The positive pole of the DC power supply of the deviceDC-: Negative pole of the DC power supply of the devicePWM: Signal input terminal (connected to MCU IO port, PLC interface, DC power supply, etc.)GND: Signal negative terminalOUT+: positive output terminal (connected to the positive pole of the device)OUT-: Negative pole of output terminal (connected to the negative pole of the device)size: 5.5 x 5cmMaterial: plasticcolour: green Package Contents:1 x Module Only the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.