1,Input DC power or battery, the voltage value is equal to the rated voltage of the motor 2,The product can be used for all DC motors within 200W of 24V, within 12V 120W, and within 6V 60W 3,Speed controller come with double MOS tube, larger heat dissipation area and smaller on-resistance 4,PWM stepless speed regulation switch bring accurate control and low noise, very practical 5,This DC motor speed controller possess 6-30V wide working voltage range, suitable for more occasion Item Type: Speed Controller Module Model: CCM6C Potentiometer: Resistance value B100K wire length approx. 40cm or 15.7in opening approx. 8mm or 0.3in Control Power: 6Vx10A=60W, 12Vx10A=120W, 24Vx10A=240W... Rated Current: 10A Maximum Current: 20A Speed Adjustment Range: 5 percent ‑100 percent PWM Frequency: 21kHz Size: Approx. 60 x 50 x 28mm or 2.4 x 2 x 1.1in 1 x Speed Controller Module Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.