1. Wide input voltage range: This PWM DC motor speed controller supports a wide input voltage range from 6V DC to 60V DC, suitable for 12V, 24V, 36V, and 48V power supplies, while output currents from 0A to 30A ensure a wide range of applications. You can use this adjustable motor controller for different purposes in various situations! 2. LED display design: This DC motor speed controller features a digital display that shows the actual speed as a percentage of the maximum speed, allowing you to read the data via the LED display. (Note: The digital display indicates the percentage of actual speed relative to maximum speed, not the actual speed value). 3. Robust construction for durability: This PWM motor speed controller is made of quality PCB material, ensuring durability and wear resistance. It is designed for longterm use and delivers reliable, consistent performance. 4. Easy to install and use: The DC motor speed controller comes with practical screw terminals for quick wiring. The builtin start/stop switch and speed control potentiometer make adjustment effortless, allowing you to control the motor speed with ease.