Features Ultra-wide working voltage range from 6-90VDC to support diverse working conditions, ensuring versatile compatibility and reliable performance. Control power range from 0.01-1000W, with a rated current of 5A, offering powerful and precise speed regulation for various motor applications. Self-contained reverse power protection, control voltage overvoltage protection, and 15A fast-blow ceramic fuse, providing robust safety features for enhanced durability and peace of mind. Equipped with a potentiometer for easy and accurate speed control, allowing for convenient and customizable . Steplessly control motor rotation speed from 0%-100% infinite change, featuring advanced technology, high efficiency, and low heat, making it ideal for a wide range of industrial applications. Specification: ？Item Type:DC Motor Speed Controller Working Voltage: DC6V-DC90V Control Power : 0.01-1000W (Maximum current 15A, rated 5A) Quiescent Current: 0.005A (Standby State) PWM Duty Cycle: 0%-100% PWM Frequency: 15khz Control Voltage: 0-5V (Voltage control type, you can directly control the speed of the motor with PLC) Size:6.4 x 6 x 3cm / 2.52 x 2.36 x 1.18in Net Weight: 75 g / 2.65 oz(approx.) Package List: 1 x Motor Speed Controller 1 x Potentiometer Note: The load must be connected to adjust speed. Package List 1 x Motor Speed Controller 1 x Potentiometer