This is a kind of fine quality high power SCR voltage regulator, stepless regulation, help adjust speed, temperature, voltage and light. Adopt high-temperature resistant FR-4 circuit board, origin imported chip SCR, full aluminum thermal fin, precisions resistance with high voltage condenser. No postpone and no delay, with crest voltage absorb circuit. You can have a try.Features: size, portable and lightweight, strong power, easy to use.High power SCR voltage regulator, stepless regulation, help adjust speed, temperature, voltage and light.Adopt high-temperature resistant FR-4 circuit board, origin imported chip SCR, full aluminum thermal fin, precisions resistance with high voltage condenser.No postpone and no delay, with crest voltage absorb circuit. insulation outshell, high temperature resistant, rustproof, high pressure and with fine durability.Adopt multi functional industrial sockets, thicken copper part design, with fine and safety.Humanized installation hole design, keep flat place or hanging on it is decided by yourself.Silent work, energy saving, stable -noise, and with wide of use.Suitable for water , tungsten lamp, small motor, electric iron and etc..Notes:When measuring the output voltage when it is empty, it is a virtual voltage. It be connected to a load of 20W or more to measure the correct output voltage.Input AC power, the output is also AC, not DC.The above mentioned 4000W refers to the ulti mate power when working under resistive load.The inductive load is 1/3 of the resistive load. The resistive load means that the inductive load such as a tungsten filament lamp or a heating wire is a series-excited motor, etc., and the circuit board electronic products are used with caution.This product is a metal case and be grounded safely.Specifications:Name: SCR Voltage RegulatorMaterial: aluminumColor: greyInput voltage: AC 220 VOutput voltage: 0-220 VMax power: 4000WVoltage adjusting : 0-220 VRated current: 9AMax current: 18AMain machine size: 100 * 83 * 75mm / 3.94 * 3.27 * 2.95inItem weight: 418g / 0.92lbPackage size: 145 * 85 * 105mm / 5.71 * 3.35 * 4.13inPackage weight: 450g / 0.99lbPackage list:1 * SCR Voltage RegulatorWhen shopping, please pay attention to the size and dimensions of the product to ensure that it meets your needs. In the title and , we have provided detailed information about the product, including its features and specificationsWe want you to be completely satisfied with your purchase, so if you have any questions or concerns, please don''t hesitate to contact us. We are here to help and will do our best to assist you.Thank you for choosing our product. We hope you enjoy it!