Feature:1. Voltage regulator adopt 23A high current terminal block, convenient and simple connection2. Comes with heat dissipation shell, aluminum alloy material heats up quickly, high efficient3. Thyristor electrical voltage regulator support fast installation, just punch three holes on the machine panel4. Adjusting voltage range is AC 0-220V, from high to low to 0, from low to high is about 20V5. Resistive instantaneous load limit maximum power is 5000W, efficiency above 90%, very practicalSpecification:Item Type: Thyristor Electrical Voltage RegulatorShell: Aluminum alloyCircuit Board: ResinMaximum Power: 5000W (resistive instantaneous load limit power), the power should be reduced for a long time, and it is recommended to use the room temperature resistive load within 2200WEfficiency: More than 90%Working Voltage: AC 220VAdjusting Voltage: AC 0-220V (from high to low to 0, from low to high is about 20V)Product Size(LxWxH): Approx. 84.8 x 70 x 40mm / 3.3 x 2.8 x 1.6in(without protruding knobs and connectors).Package List:1 x Electronic Voltage Regulator1 x Adjusting Knob CapNote:Note that the load must be connected before adjusting the voltage. Thyristors are mainly used for resistive loads (electric heating filament incandescent lamps, etc.), and most single‑phase AC motors can also be used.