Features: _x000D_ 1. This is a simple and easy-to-use DC motor speed controller of elegant appearance and stable performance. _x000D_ 2. Speed controller is made with high quality circuit board which ensures a longer service life. _x000D_ 3. This speed controller can change rotation direction of DC motor by adjusting the line sequence. _x000D_ 4. Easy to use, simply rotate the knob to change output so to change the rotary speed of DC motor. _x000D_ 5. Designed with convenient screw terminals for quick wiring. _x000D_ _x000D_ Specification: _x000D_ Model: CCM96SK _x000D_ Input Voltage: DC 10-60V (Output voltage is about 0-100% of input voltage) _x000D_ Control Power: 12V*10A=120W, 24V*10A=240W, ... _x000D_ Rated Current: 10A _x000D_ Maximum Current: 20A _x000D_ Speed Adjustment Range: 5%-100% _x000D_ Potentiometer: resistance B100K; opening 8mm _x000D_ PWM Frequency: 25kHz _x000D_ Size: 88*59*35mm / 3.46*2.32*1.38in _x000D_ Package weight: Approx. 98g/3.4oz _x000D_ _x000D_ Package List: _x000D_ 1 * DC Motor Governor _x000D_ _x000D_ Note: _x000D_ 1. DC motor speed controller can not be directly connected to AC, or it will burn out. _x000D_ 2. DC power supply can not reverse the positive and negative pole, otherwise the governor will be damaged. _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.