Feature: 1. The motor speed controller has a soft start function. When starting the motor, the current increases slowly. 2. No inrush current, which can effectively protect the motor and prolong the service life of the speed controller. 3. Equipped with a start‑stop button, which can be controlled by an external switch to meet various control requirements of customers. 4. The duty cycle and working frequency can be set, which is convenient for you to operate and use the motor according to its working characteristics. 5. The digital encoder knob can adjust the motor speed, which is more accurate and consistent than ordinary potentiometers. Specification: Item Type: Speed Controller Material: ABS Model: ZK-BMG Working Voltage: DC 9-60V Current: 12A Power: 500W Working Frequency: 1KHz~99KHz Adjustable, 1KHz Stepping, Default Frequency 20KHz, Accuracy About 1% Duty Cycle: 0-100%, 1% Step Purpose: Dc Motor Speed Regulation Applicable Scenarios: Control Motors, Electronic Equipment, Automation Equipment. Package List: 1 x Speed Controller