Features VOLTAGE AND CURRENT: DC brush motor speed regulator, the working voltage range is 12‑48V, the maximum rated current is 100A, and the peak current is 200A. APPLICABLE DEVICE: Can be used for DC brush motor, suitable for car cooling fan motor, automotive air conditioner motor, exhaust fan, treadmill motor, etc. SIMPLE REGULATION: Support bidirectional CW and CCW, use 0‑5V potentiometer, speed regulation range is 0‑100%, easy to operate, has a wide application range. MULTIPLE USAGES: The DC motor speed controller can also be used for DC lamp dimming or DC heater control, which has strong practicability. COMPACT SIZE: The motor governor has a compact structure, with stable connection, easy installation and takes up little space, safe and reliable. 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: 0-100% Digital Scale: 0-100 Support Motor: DC Brush Package List:1 x Motor Speed Regulator Note:0‑100 digital display is the percentage of speed, not the actual speed of the motor. Package List 1 x Motor Speed Regulator