Item Type: Motor Speed Regulator_x000D_ Input Voltage: DC9-55V_x000D_ Output Voltage: Linear under load_x000D_ Output Limit Current: 40A (20A for long term use, pay attention to keep the module unobstructed for heat dissipation)_x000D_ Limit Power: 2000W_x000D_ Speed Regulation Type: Flow Regulation_x000D_ Speed Regulation Mode: Potentiometer (linear) with switch_x000D_ Speed Regulation Duty Cycle Range: 0-100%_x000D_ Control Frequency: 25KHz_x000D_ Wiring Type: Barrier Terminal Block 1PORTABLE DESIGN: PWM DC motor speed controller, with power indicator light and stable circuit design, which has compact structure, easy installation and use. 2DUTY CYCLE RANGE: This knob has a switch function, which can control the motor speed between 0?100%, and the adjustable potentiometer can separate the flexible cable. 3EASY OPERATION: The speed governor adopts potentiometer (linear) with switch speed regulation mode and barrier type terminal, which is convenient for connection. 4EXCELLENT PARTS: Using excellent high voltage MOS tube, high frequency low resistance capacitor, automotive fuse, accurate parameters, not easy to heat. 5GOOD STABILITY: The internal circuit is protected by aluminum case, and the motor runs smoothly without noise and vibration, ensuring long term reliable operation.Pay attention to standard operation.1 x Motor Speed Regulator