12V/24V/36V 40A PWM DC Motor Speed Controller with Forward/Reverse Switch, Adjustable Knob, and Digital Display

This high-power PWM DC Motor Controller (12V/24V/36V, 40A) enables precise control over motor speed and direction. Designed for reversible motor operation, it features automotive-grade relays, an adjustable knob for voltage control, and a rocker switch to toggle between forward and reverse rotation. A 3-digit 7-segment LED display shows the output voltage for real-time monitoring.

The controller allows manual or automatic motor start/stop, direction selection, speed regulation, torque limitation, and overload protection—making it ideal for high-current DC motor applications in robotics, electric vehicles, and industrial systems.