Features: 100% 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 220V Maximum power: 2000W Voltage regulation: AC 50-220v Circuit board : FR-4 circuit board Withstand voltage: Maximum. 1200 volts/current 25A S ize : Approx. 5.5 x 5cm /2.17 x 1.97in Weight: 42g Package included: 1 x Motor Speed Controller Note: 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. .