♕【Technical Parameters】 Input supply voltage: DC 10V-55V; Rated current: 40A; Max current: 60A; Speed range: 0%-100% ; Apply to: DC Brush Motor ♕【CW/CCW Function】The switch can provide clockwise and counter clockwise rotation choice. With this latching switch, you can control the rotation direction easily. ♕【Excellent Heat Dissipation Performance】 The enclosure of the speed controller for motor is an aluminum enclosure. Aluminum shell is very strong to prevent damage, holes on its side and top which are helpful for heat dissipation. ♕【Easy to Operate】The stepless motor controller has a simple potentiometer knob adjusts the motor speed from 0% ~ 100% smoothly. LED display screen shows the motor speed from 0% to 100% of the rated speed. ♕【Application】 The DC motor driver can be used on brush motor speed regulation, light dimming regulation in the DC circuit. Note: The motor can not be used in electric vehicles. Specifications Product Size: 5.03 x 3.85 x 0.74 inch/ 128 x 98 x 19mm Forward & Reverse: Support Supply/load Voltage: DC 10-55V Maximum Current: 60A Continuous Current: 40A PWM Frequency: 15KHZ Speed Modulation Range: 0 ~ 100% Speed Control Type: Current modulation by potentiometer (with switch) Support Forward Reverse Rotation Control: Yes, by Forward-Brake-Reverse Switch Note: The digital display is the percentage of motor full speed 0-100 actual speed of non-motor The input voltage must be divided into positive and negative The input voltage should be equal to the rated voltage of the motor within DC 10-55V