Feature 1 Better Control: Enables 0220V stepless adjustment, this voltage regulator ensures accurate and easy control on equipments. 2 Secure Working: The safe insulation promises no electric leakage when short circuited or the SCR burnt, safe and reliable. 3 Broad Matching: Allows for broad application on electric stove, water heater, lamp, small motor, electric iron and so on. 4 Great Material: Made of high quality aluminium alloy material, the metal casing is not easy to heat up under high currents. 5 Easy to Install: Comes with a light weight and a compact size as well, the convenient installation can be quickly completed.Item Type: Voltage RegulatorMaterial: Aluminium AlloyInput Voltage: 220VACMaximum Power: 4000W (applicable within 2000W)Voltage Regulation Range: 0V-220V stepless adjustment (with load). Current: 40ASCR Model: BTA41-600B/800B Package List1 x Voltage RegulatorNoteThe load must be connected before use.