1.Connect this device with lamp or home appliance in a series connection, then rotate the knob for dimming, speed, voltage, temperature control.

2.Applicable appliance: electric furnace, water heater, lamps, small motor, electric iron etc.

3.Input voltage: 220V.

4.Maximum power: 2000W.

5.Adjustable voltage: 50-220V AC.

6.Material: plastic, metal.

7.Size: 4.8cm x 5.5cm x 2.7cm.