3pcs DC 6V 12V 24V 28V 3A 80W PWM Motor Speed Controller Regulator Adjustable Variable Speed Control Switch

Features: - 1203B DC Motor Speed Regulator controls the speed of a DC motor by adjusting Pulse-Width-Modulated (PWM). - The input power range is DC 6V-28V . - Duty Cycle adjustable range : 0%-100%. - Item Size: 1.3*2*0.4 inches Operating Instruction: 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 speed of motor. Note: 1. Before you attempting to wire the controller, make sure power is off. 2.Do not reverse positive and negative electrical loads. This will damage the controller. Package Included: 3 x DC Motor Speed Controller