Features:Thisis a simple and easy-to-use DC brushed motor speed controller of elegant appearance and stable performance.Speed controller is made with high quality circuit board which ensures a longer service life.Designed with screw terminals for quick and convenient wire connection.This motor speed controller has switch function, and can also accomplish CW or CCW rotation control.High performance DC motor speed governorhas large power, small heating, high efficiency and high moment of force, whileno loud noise.Specification:Model: CCM2NJWorking Voltage: 12-40V DC (output voltage is about 0-100 percent of input voltage)Control Power: 12V=36W, 24V=72W....40V=120WRated Current: 3AMaximum Current: 5ASpeed Control Range: 0-100 percent PWM Frequency: 15KHZPotentiometer: Resistance B100K, opening 8mmSize(L x W x H): 73 x 39 x 31mm or 2.9 x1.5 x 1.2inWeight: 74g or 2.6oz (approx.)Package list:1 x Speed ControllerNote: 1, This speed controller is used for DC burshed motor.2, It is not suitable for DC brushless motor can not be used as a voltage regulator or voltage stabilizer.3, 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..