Feature: 1. Convenient wiring, thick red wire for the positive pole of the power supply, thick black wire for the negative pole 2. The thick blue line is the positive pole of the motor, and the thick green line is the negative pole of the motor 3. The advantage of using pulse width modulation (PWM) for dimming/speed regulation is that the energy of the power supply can be fully utilized and the circuit efficiency is high 4. The motor control board can adjust the motor speed through the potentiometer; it supports clockwise/counterclockwise rotation adjustment 5. Can be used for brush motor speed control, dimming adjustment, etc. in DC circuits Specification: Item Type: Motor Governor Material: Aluminum Alloy Input Voltage: DC9-60V Maximum Current: 20A Continuous Power: 1200W Speed Regulation Type: Current Regulation Speed Adjustment Range: 0-100%, Working Frequency: 25KHZ, Support Forward and Reverse Rotation Purpose: DC Motor Driver Can Be Used for Brush Motor Speed Adjustment, Dimming Adjustment, Etc. in DC Circuits. Package List: 1 x Motor Governor Note: The input voltage must be distinguished between "+" and "‑", otherwise it will be burned