Speed controller for motor with positive inversion and 150W switch   Features Model: CCM2 Voltage: 304 12V 24V 36V Power: 150 W Modulation : PWM Switch direction: CW / CCW Resistance: 10 K Cable Length: 20cm/19.8 cm 14cm/ 14 cm Input voltage requirement: 10V ~ 40VDC (Wide range) Maximum direct current: 5A Short circuit overload protection current: 8A Short circuit time not more than 30 seconds PWM range: 0% ~ 100% Size: 74mm * 46mm * 27mm Distance between installation holes: 63.5mm * 36.5mm Installation hole diameter: 3.5m