220V 2000W Speed Controller SCR Voltage Regulator Dimming Dimmers Thermostat Features: Input Voltage: 220V Features: 100% Brand New, good quality Material: plastic, metal Suitable for electric furnace, water heater, lamps, small motor, electric iron. etc Specification: Input Voltage: 220V Maximum Power: 2000W Adjustable Voltage: 50-220V AC Life span and easy installation. How to use: Connect this device with lamp or home appliance in a series connection, you can play a brightness adjustment, speed, pressure, temperature control effect, very convenient to use.