Item Name: PWM 2000W 25A High Power Adjustable Speed Controller Voltage Regulator Motor. Maximum power: 2000 WDimension:54 x 48 x 28 mmVoltage regulation: AC 50-220VResistance materials: metal and plasticInput voltage:AC 220VConnect this device with lamp or home appliance in a series connection, then rotate the knob for dimming, speed, voltage, temperature control.As the power has very big,so the normal home appliances or small factories enough to use.This pressure regulator with two-way high power silicon controlled, potentiometer have nuts, can use not need add any components, very convenient and practicalApplicable Appliance: Electric furnace, water heater, lamps, small motor, electric iron. etcNote:Please allow 1-3mm differs due to manual measurement.Packing include:1 PC Voltage Regulator Adjustable Controller *