【Durability】: This PWM motor speed controller is made of high-strength PCB material, which has good durability and wear resistance. 【Easy to Install】: This motor speed controller adopts screw terminals, the wiring is convenient and quick, and it can be controlled easily and conveniently. 【LED Display】This DC motor speed controller is designed with a digital display that can display the percentage of the actual speed to the maximum speed, so you can easily read the data through the LED display. 【Wide Input Voltage Range】: This PWM DC motor speed controller supports a variety of input voltages from DC 6V to DC 48V, and suitable for 12V 24V 36V 48V power supply, while the output current is 0A-30A, which ensures a wide range of output voltages. 【Stable Performance】This easy-to-use motor controller has stable performance, with an instant start/stop switch and a speed control potentiometer, easy to use. Product Specifications: With rotary knob Size: about 3.78 x 2.40 x 1.34 inches Input