AC Motor Speed Controller 4000W Voltage Regulator Dimmer 230V Working voltage: AC 220V. Maximum power: 4000W (connected ohmic load). Made of high quality metal material. Protection: Anti-Peak, Surge, RC Absorption (EOC). Suitable for electric ovens, water heaters, lamps, small motors, irons, and other resistive or inductive loads. Ideal for household use and industrial applications where manual control is needed. Input connects to 220V AC power supply. Output connects to electric stove, motor, or similar devices. Adjust speed, voltage, or temperature using the control knob. Material: Metal, electronic components. Color: As shown in pictures. Size: 85x55x38mm Note: Due to lighting and screen setting differences, the actual color may vary slightly from the images. Slight dimensional variations may occur due to manual measurement.