Specification: Item Type: DC Motor Speed Regulator Input Voltage: DC12-48V Output Voltage: Linear under load Instantaneous Current: 200A Continuous Current: Within 100A is recommended CW and CCW: Bidirectional Speed Regulation Mode: Potentiometer 0-5V Speed Range: 0-100percent Digital Scale: 0-100 Support Motor: DC Brush How to Use: Install and use directly. Package List: 1 x Motor Speed Regulator Note: 0‑100 digital display is the percentage of speed, not the actual speed of the motor.