This Motor Speed Regulator controls the speed of a motor by adjusting Pulse Width Modulation(PWM). It’s for applications like car wiper motor, exhaust fan, etc. Providing nice adjustment of motor speed. Features: Industrial design, 200A high current, continuous working current can reach 100A. Wide operating voltage: 10V-50V; control : 0.01-5000W. Positive inversion of motor control, pure relay can bear larger current. 0-5V signal voltage control the rotate speed. With forced cooling fan to solve the heating problem of high current operation. Can be applied to car wiper motor, exhaust fan, etc. Various types of general-purpose brush motor speed; 2. Various types of motor to adjust speed(automotive cooling fan speed, auto fan speed, auto wiper motor speed, automotive -conditioning fan speed); 3. The production line belt speed, pipeline exhaust fan speed, treadmill speed, multiple computers in parallel fan speed control, electronic fan speed control; 4. Various types of dimmer, various types of, etc. Specifications: Working Voltage: 10V-50V Max. Continuous working current 100A Control : 0.01-5000W Static Current: 0.05A PWM Duty Cycle: 0%-100% PWM Frequency: 15KHz Control Voltage: 0-5V Operating : -20 to 40°C Size: 23.5 11.5 6.5cm / 9.25 4.53 2.56in Weight: 1.289kg Package Size: 26 18 15cm Package Weight: 1.5kg Package List: 1 Motor Speed Controller E4772.