Features: _x000D_ This is a simple and easy-to-use DC brushed motor speed controller of elegant appearance and stable performance. _x000D_ Speed controller is made with high quality circuit board which ensures a longer service life._x000D_ _x000D_ Designed with screw terminals for quick and convenient wire connection. _x000D_ This motor speed controller has switch function, and can also accomplish CW/CCW rotation control. _x000D_ High performance DC motor speed governor has large power, small heating, high efficiency and high moment of force, while no loud noise. _x000D_ _x000D_ _x000D_ Specification: _x000D_ Model: CCM2NJ _x000D_ Working Voltage: 12-40V DC (output voltage is about 0-100% of input voltage) _x000D_ Control Power: 12V=36W, 24V=72W....40V=120W _x000D_ Rated Current: 3A _x000D_ Maximum Current: 5A _x000D_ Speed Control Range: 0-100% _x000D_ PWM Frequency: 15KHZ _x000D_ Potentiometer: Resistance B100K, opening 8mm _x000D_ Size(L x W x H): 73 x 39 x 31mm / 2.9 x1.5 x 1.2in _x000D_ Weight: 74g / 2.6oz (approx.) _x000D_ _x000D_ _x000D_ Package list:_x000D_ 1 x Speed Controller _x000D_ _x000D_ _x000D_ Note: _x000D_ 1, This speed controller is used for DC burshed motor._x000D_ 2, It is not suitable for DC brushless motor; can not be used as a voltage regulator or voltage stabilizer. _x000D_ 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.