Description The 1203BB DC Motor Regulator controls the of a DC motorby adjusting Pulse-Width-Modulated (PWM). It provides a continuous current of 3A to your DC motor or other DC load. Besides, the circuit also includes a 3A fuse, with reverse connection of power supply and control the forward or reverse direction and the stop of DC motor by switch. Features - Color: Random color.- Material: Metal.- Size: About5.00X3.20X1.50cm/ 1.97X1.26X0.59inch. - The input power range is DC6-28V.- Control the forward or reverse direction and the stop of DC motor by switch.- Potentiometer with switch function.- The switch cable length 15cm. Operating instruction Before you attempting to wire the controller, make sure that the power is off.1. Connect wires refer to the wiring diagram.2. Turn on the power, and adjust the potentiometer.3. The LED indicates the power up and the of motor.Warning: Do not reverse positive and negative power loads. This will damage the controller! Packing list: 1 * 1203BB 6V 12V 24V 3A 80W DC Motor Controller (PWM) Adjustable Reversible Motor Driver Switch