General description This 2PCS PWM Fan Speed Control Switch is designed for precise dimming and speed control of motors and fans, accommodating a wide voltage range from 9V to 60V with a maximum output of 12A/500W. It features a soft start function to protect the motor and enhance its lifespan, along with high-quality materials for durability and reliability. Technical specifications Working voltage: DC 9V-60V Rated current: 12A High current: 20A Maximum power: 500W Working frequency: 1KHz-99KHz adjustable, with a default frequency of 20KHz Accuracy: about 1% Duty cycle: 0-100%, 1% step Installation opening size: 39.3MM x 76.5MM Measurement allowed error: +/- 1-3cm Usage The PWM Fan Speed Control Switch allows for adjustable speed control of DC motors and fans, providing higher precision and consistency compared to standard potentiometers. It is ideal for applications requiring variable speed and dimming capabilities. Other information Color: As shown Material: Plastic Package