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 suitable for industrial environments where manual control is required. Input connects to 220V AC power supply. Output connects to electric stove or motor devices. Adjust speed, voltage, and temperature using the control knob. Specifications: Material: Metal, electronic components Color: As shown in pictures Size: 85x55x38mm Note: Due to lighting and screen setting differences, the item's color may vary slightly from the images. Slight dimensional variations may occur due to manual measurement.