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
Input Voltage: 220V
Maximum Power: 2000W
Adjustable Voltage: 50-220V AC
Size (L x W x H): Approx. 4.8cm x 5.5cm x 3cm
Material: Plastic, metal
1 pc x Speed Thermostat Controller