AC 220V 4000W High Power SCR Speed Controller Electronic Voltage Regulator Governor

Features: Adopts double insulation; there will be no electric leakage if short-circuit or SCR burn out. Can prevent peak voltage and electrical surge; RC absorption and fuse enhance usage safety. Aluminum case prevents it from easy damage; filled tin prevents it from heating when in huge current. With protective cap and connection post; thicker and larger heat sink. Wide application: electric furnace, water heater, lamps, small motor, electric iron etc. How to use: Adjustable Power Supply Board; connect this device with lamp or home appliance or electric circuit, then rotate the knob for dimming, speed, voltage, temperature control. Some Applications: Electric furnace, water heater, lamps, small motor, electric iron etc. Specifications: Working Voltage: AC 220V Maximum Power: 4000W (connected resistive load) Voltage Regulation: Begin from 10V, 10V-220V Protection: Anti-spike, Surge, RC absorption (EOC) Size: 85x65x38mm/3.35x2.56x1.5"?about? Quantity: 1 Pc