Industrial design, 200A high current, continuous running current can reach 100A. Wide working voltage: DC 10V-50V Control power: 0.01-5000W. Positive reversal of motor control, pure silver contact relay can carry larger current. 0-5V analog signal voltage controls rotation speed. With forced cooling fan to solve the heating problem of high current operation. Programmable design is perfect for feature development. Can be applied to wiper motor, , etc., providing good motor speed adjustment. Applications: 1. Various types of general- brush DC motor speed 2. Various types of vehicle motor speed adjustment (car fan speed, automatic fan speed, automatic wiper motor speed, car air conditioning fan speed) 3. The production line belt speed, pipeline speed, treadmill speed, multiple computers in parallel fan speed control, electronic fan speed control 4. Various types of DC lamp dimmer, various types of DC heater thermostat, etc. Operating voltage:DC 10V-50V Max. current:200A (max. continuous current 100A) Control power:0.01-5000W Static current:0.05A PWM Duty Cycle:0 percent - PWM Frequency:15KHz Control voltage:0-5V Operating temperature:-20C to 40C Colour:Silver Material:Metal Size:23.5x11.5x6.5cm or 9.25x4.53x2.56in Package Contents: 1 x Speed Controller 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. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.