Features: Speed controller is made of high quality circuit board which ensures a longer service life. This simple and easy-to-use DC motor speed controller has an stable performance. The output current of this motor speed controller can be adjusted from 0A to 100A. Designed with a digital display that shows the rate in percent of actual speed to maximum speed. This motor speed controller uses screw terminals for convenient and quick wiring. Specifications: Input Voltage: DC6V-60V Output Voltage: Linear with load Output Current: 0A~100A Continuous Current: 10A Speed Range: 0----100% Regulation Method: Potentiometer(Linear) Regulation Type: Regulating Current Control Frequency: 15KHz Wiring Type: Screw terminal Rotary Knob: 100K (with switch) Size: 6*6cm/2.4*2.4in Weight: 70g(approx.) Package Includes: 1 x Speed Controller 1、Speed controller is made of high quality circuit board which ensures a longer service life. 2、This simple and easy-to-use DC motor speed controller has an stable performance. 3、The output current of this motor speed controller can be adjusted from 0A to 100A. 4、Designed with a digital display that shows the rate in percent of actual speed to maximum speed. 5、This motor speed controller uses screw terminals for convenient and quick wiring.