Features:100 percent brand new and high quality This voltage regulator is used for motor speed regulation and can adjust the output voltage through the accurate multi-ring potentiometer.Connect this device with lamp or home appliance in a series connection, then rotate the knob for dimming, speed, voltage, temperature control.This controller is adopt of high-quality SCR, resistance to high temperature and high voltage, and the maximum current is up to 25A.This AC voltage regulator can be used to control AC motor speed, AC light and heating wire temperature.Specifications:Voltage: AC 220VMaximum power: 2000WVoltage regulation: AC 50-220vCircuit board: FR-4 circuit boardWithstand voltage: Maximum. 1200 volts or current 25ASize: Approx. 5.5 x 5cm or 2.17 x 1.97inWeight: 42gPackage included:1 x Motor Speed ControllerNote:Please note that the new type and old type of this product will be sent randomly and make sure you will not mind before ordering..