4000W 220V AC SCR Motor Speed Controller Module Voltage Regulator Temperature Dimmer for Electric Furnace Water Heater LED Light Description:Features:100% new and high qualityThe input is connected with AC 220V, output is connected to the electric stove wire or motor appliances,then rotate the knob for speed, voltage, temperature control.Specifications:Working Voltage: AC 220VMaximum Power: 4000W (connected resistive load)Voltage Regulation:AC 0-220V,Start from AC 10VDimensions: 89(L) x 59(W) x38(H)MM/3.35x2.56x1.5"Protection: Anti-spike, Surge, RC absorption (EOC)Using Method:Step 1: Adjustable Power Supply Board;Step 2: connect this device with lamp or home appliance or electric circuit,Step 3: then rotate the knob for dimming, speed, voltage, temperature control.Some Application:Electric furnace, water heater, lamps, small motor, electric iron etc.Attention:Load does not exceed the maximum power, otherwise it will burn module and electrical appliances;use the resistive load as far as possible; reduce inductive and capacitive load power greatly.( it is best to leave more than half of them)Type:Governor/Regulator/Motor speed controller/Dimmer ModulePackage Included:1 x AC 220V 4000W SCR Voltage Regulator Dimmer Motor Speed Controller Module