Utilizing a high-quality electronic thyristor () design, this controller offers stable and efficient voltage regulation. The thyristor-based circuitry provides smooth dimming and speed control with reduced power loss This 220V stepless speed controller is designed to handle up to 3700W of power, making it suitable for high-load applications such as angle grinders, electric drills, fans, pumps, and other AC motor equipment that requires precise speed adjustment. Ideal for controlling the speed of AC fans, regulating the power of angle grinders, and adjusting brightness or heating power for various resistive or inductive loads (within rated capacity). Perfect for DIY projects, workshop use, household appliances, and small industrial equipment. The stepless adjustment knob allows you to finely tune the output voltage and motor speed from low to high without any noticeable steps. This ensures smooth acceleration, better control of working speed, and improved protection of connected tools and devices. Designed for 220V AC mains, this speed controller is compatible with most regions using 220-240V power. It can be integrated into existing equipment or used as an external control module for a variety of and appliances., Weight: 0.93475999088 pounds, Manufacturer: YRREATY