Product Name: 5000W AC Regulator Dimensions: L84.8 x W70 x H40mm, excluding protruding knobs and joints. Maximum power: 5000W (resistive instantaneous load limit power), the power should be reduced for a long time, it is recommended to use within 2200W of resistive load at room temperature (key parameters, pay attention). Efficiency: more than 90% Adjustment : AC 0-220V (from high to low can be adjusted to 0, from low to high is about 20V) Note that you must connect the load first and then adjust the . The thyristor is mainly used for resistive loads (electric heating wire incandescent , etc.), most of the single-phase AC motors can also be used, they are not guaranteed. For other types of loads, confirm the buyer yourself. Operating : AC 220V Maximum Power: 5000W High Temperature FR-4 PCB Colour:silver Material:Metal Package Contents: 1 x Regulator Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.