uniquegoods 6V 12V 24V 28V 3A 80W DC Motor Speed Controller (PWM) Speed Adjustable Reversible Switch 1203BB dc motor driver reversing Package:1 x dc motor speed controller Item size: 1.3*2*0.4 inches; Net Weight:1.13 ounces Duty Cycle adjustable: 5%-100%, potentiometer with switch function. The maximum output power: 80W The maximum continuous output current :3A