1、1. Using high quality ultra-small optocoupler, with strong anti-interference ability and stable performance.​ 2、2. The input signal and output signal is completely isolated. 3、3. With input/outpt signal indicator. 4、4. Onboard screw terminal block for quick wiring.​ 5、5. The output can control high-power equipment, bulb, LED strip, DC motor, micro pump, solenoid valve, etc. Features: 1. Using high quality ultra-small optocoupler, with strong anti-interference ability and stable performance. 2. The input signal and output signal is completely isolated. 3. With input/outpt signal indicator. 4. Onboard screw terminal block for quick wiring. 5. The output can control high-power equipment, bulb, LED strip, DC motor, micro pump, solenoid valve, etc. Specification: Model: YYNMOS-4 Input signal: 3~20V PWM signal PWM frequency: 0~1kHz Output capacity: DC 3.7V~27V, current of each channel ≤ 10A Weight: 27g (approx.) Wiring terminal description: 1. DC+: DC power supply positive 2. DC-: DC power supply negative 3. PWM: Signal input terminal (connected to the single-chip IO port, PLC interface, DC power supply, etc.) 4. GND: Signal negative terminal 5. OUT+: Output positive terminal (connected to the device positive) 6. OUT-: Output negative terminal (connected to the device negative) Package list: 1 * PLC Amplifier Circuit Board Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.