Features： 1、PWM CONTROL: Smoothly speed control with PWM technology, achieving smoother speed control and provide greater force at low speeds for the PWM DC motor speed controller. 2、RELIABLE PERFORMANCE: With short circuit, overcurrent, and overtemperature protection to ensure the reliability of the performance and prevent damages to the motor. 3、SOFT START FEATURE: Eliminates the issue of high starting current, allowing for a smoothly start up of the motor and extending its lifespan. 4、COMPLETE ISOLATION OF HIGH AND LOW VOLTAGE SIGNALS: Ensures safer usage by isolating high and low voltage signals, preventing any potential hazards. 5、USER FRIENDLY DESIGN: The PWM DC motor speed controller is designed to be easy to use and install, providing convenience and efficiency for users. Specification： Item Type: PWM DC Motor Speed Controller Material: Aluminum Alloy Input: AC110-220V Output: DC0-100V Speed Regulation: Potentiometer Package List： 1 x PWM DC Motor Speed Controller