Description C 120V~220V 4000W SCR Motor Speed Controller Volt Regulator Thermostat Dimmer100% brand new and high-quality made.Features variable voltage fan speed controller, the input voltage is AC 120-220V, the output voltage is adjustable from 0-220V, the maximum power is 4000W, the rated current is 9A and the limit current is 18A.This voltage regulator adopts imported high-quality chip thyristor, high-power new semiconductor, all-aluminum heat sink, high-temperature-resistant FR-4 circuit board, and double-sided copper-platinum welding is safer and firmer.Zero hysteresis, zero delay, with peak voltage absorption circuit to effectively protect high-power thyristor, anti-surge, anti-peak, RC absorption multiple protection. The flame-retardant metal casing does not deform under high temperature, and the metal spray paint does not rust, which is resistant to high temperature and heavy pressure.Suitable for electric stoves, water heaters, tungsten lamps, small motors, electric soldering irons, fan speed regulation, etc.Note:The inductive load is 1/3 of the resistive load. The resistive load refers to tungsten lamps, heating wires, etc., and the inductive load refers to the series excitation motor. etc. Electronic products with circuit boards should be used with caution motor. etc. Electronic products with circuit boards should be used with caution.Package Includes:1x Voltage Regulator