Feature: 1. Wide Application: This speed controller adjusts speed, temperature, voltage, and light intensity. Compatible with Type A and Type B plugs. Suitable for exhaust fans, tungsten bulbs, electric stoves, angle grinders, marble machines, and blowers. 2. High-Accuracy Display: Features a precision-adjustment knob for accurate voltage control. Digital display shows real-time operating voltage. LED backlight enhances visibility of the voltage reading. 3. Stepless Speed Regulation: Enables smooth, continuous speed adjustment to suit varying operational requirements. Compatible with multiple appliance types. 4. 10A Overload Protection: Built-in overload protection switch manages input and output voltages. Provides protection against overloads and short circuits. Replaces traditional boat switches and fuses. 5. Durable ABS Housing: Constructed with high-quality ABS material for wear resistance and extended service life. Specification: Item Type: AC Motor Speed Controller Material: ABS Speed Control Mode: Stepless Speed Control Package List: 1 x AC Motor Speed Controller Note: This speed controller is not compatible with devices containing internal circuit boards or capacitors, including bedside clip fans, miniature fans, small ceiling fans, LED energy-saving lamps, microwave ovens, induction cookers, light-wave ovens, washing machines, rice cookers, aquarium pumps, or brushless synchronous motors.