Product description
Connect this device with lamp or home appliance in a series connection, then rotate the knob for dimming, speed, voltage, temperature control
Applicable Appliance: Electric furnace, water heater, lamps, small motor, electric iron etc
Adjustable Voltage: 50-220V AC
Material: plastic and metal
Size: 4.8 x 3.5 x 2.7cm/1.88*1.37*1.06"
1 x Electronic Voltage Regulator