Features:1203BS DC Motor Speed Regulator controls the speed of a DC motor by adjusting Pulse-Width-Modulated (PWM)The input power range is DC 6-28VControl the forward or reverse direction and the stop of DC motor by button switch.Press the green button, the motor reverses rotates; and release the button, the motor stopsPress the red button, the motor clockwise rotates; and release the button, the motor stopsSpecifications:Input supply voltage: 6V-24V DCDuty Cycle adjustable: 0%-100%Button switches includedThe maximum continuous output current :3AProduct Size: Approx. 57 x 37 x 21mm / 2.24 x 1.46 x 0.83inPackage Includes:1 x DC Motor Speed Controller.Note: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.