Battery Properties: Without Battery Power Mode: Room electrical/hard wiring Input voltage: DC6-28V Maximum current: 3A 1. DC Motor Speed Regulator controls the speed of a DC motor by adjusting Pulse-Width-Modulated (PWM). 2. It provides a continuous current of 3A to your DC motor or other DC load. 3. 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 For Switch.