3. Precise speed control with current adjustment: The motor governor driver module adopts current adjustment to regulate speed, using a potentiometer (linear) for precise speed control within the 0-100% range. 1. Rigid mechanical structure: This motor speed controller has a rigid mechanical structure that provides stable support and protection, ensuring the normal operation of the motor. Its compact size and easy installation suitable for various DC motor speed control applications. 2. Wide input voltage range: The DC motor controller module supports an input voltage range of DC10-55V, making it suitable for different voltage applications such as 12V-48V. 4. Digital display function: The DC10-55V voltage regulator features a digital display function that shows the motor's full speed percentage, enabling users to understand the motor's operating state conveniently. Note that the displayed value is not the actual speed of the motor.