Features Flexible Installation: External potentiometer can be placed at any location for long-distance , providing flexibility and convenience based on actual needs. Versatile Usage: Widely applicable for controlling the speed of fans, pumps, and other DC loads, as well as for dimming the brightness of DC lamps or LEDs, offering a wide range of applications for various needs. High-Quality Material: Constructed with and high-quality materials, ensuring long-term reliability and performance, suitable for prolonged usage. Pulse Width Modulation: Allows the use of PWM DC voltage to control the direction of the DC motor, providing and efficient motor speed control. Safety Tested: Passed rigorous safety tests, ensuring the motor regulator's safety and reliability, providing peace of mind and confidence in its usage. Features: 1、Flexible installation, the external potentiometer can be installed to any location for long-distance according to actual needs. 2、This DC motor speed controller can be widely used in controlling the speed of a fan/pump/other DC load, or to dim the brightness of DC lamps or LEDs. 3、This DC motor speed controller is made of high quality material, in long time usage. 4、The motor Speed Controller allows the use of pulse width modulation (PWM) DC voltage to control the direction of the DC motor. 5、This motor regulator has passed many safety tests and is safe and reliable. You can use it with confidence. Specification: Specification: Rated current: 40A (maximum output current) Power requirement: 10？50VDC. Frequency: 12000HZ Control motor power: 0.01？2000W. Operating voltage 12V: 480W (max); Operating voltage 24V: 960W (max); Operating voltage 36V: 1440W (max Package Included: 1 x DC Motor Speed Control Package List