Feature: 1. PWM high-efficiency DC motor speed control module, stepless speed change, PLC speed regulation. 2. The 50V/1000uF large capacitor has obvious advantages compared to other types of speed governors of 100-200uF. 3. Use 1RF3205 power tube, use 8500 high current terminal, the power is stronger. 4. Advanced technology, high efficiency, high torque, low heat, low noise, is widely applied to industrial production. 5. Manufactured from premium pcb materials for a long service life and stable performance. Specification: Conditon: 100% Brand New Item Type: Speed Control Module Material: PCB Color: As Pictures ShownCircuit Board Size: Approx. 76mm x 45mm/3.0 x 1.8in Input Voltage: DC12-48V Output Current: 0-20A Type of Speed Regulation: Flow Regulation Speed Range: 0-100% Wiring Type: Fence Type Terminal Output Voltage: Linear Under Load Continuous Power: 1200W Speed Regulation Method: Potentiometer (Linear) Control Frequency: 25KHZ Rotary Knob Specifications: 097 (0-100% Speed Regulation). Package List: 1 x Speed Control Module