Description: AC voltage regulator. 4000W SCR high power. Up to 40A current. Electronic voltage regulator?dimmer?speed controller?thermostat controller. AC 0v-220V continuously adjustable, zero lag, zero delay, super heat dissipation. With reverse polarity protection, high current contactor. Specification: Working Voltage: 220V AC Maximum power: 4000W Voltage regulation: AC 0V-220V continuously adjustable Size: approx. 60 x 37 x 45mm Package Includes: 1 Piece SCR Voltage Regulator
