Feature: High-power thyristor voltage regulator with stepless adjustment for precise control of speed, temperature, voltage, and light in applications like electric furnaces, water heaters, lamp dimming, and small motors. Compact and lightweight design for easy portability, combined with powerful performance and simple operation. Fireproof, heat-insulating, high-temperature resistant, rust-proof, and high-pressure resistant metal shell ensures durability and safety. Multi-functional industrial plug with thickened copper design for excellent contact, safety, and reliability. Quiet operation, energy-saving, stable anti-noise performance, and wide voltage compatibility for versatile use. Input voltage: AC110-220V Output voltage: 0-220V Maximum power: 4000W Voltage adjustment range: 0-220V Rated current: 9A Maximum current: 18A Plug type: EU plug (compatible with Indonesia, Germany, France, Italy, etc.) Voltage: AC 220V Color: Black Material: Metal Precautions: When the machine is empty, the measured output voltage is a virtual voltage; a load of more than 20W must be connected to measure the correct output voltage. Input and output are both AC, not DC. The 4000W limit power is for resistive loads; inductive loads (e.g., series excitation motors) should be derated to 1/3. The product has a metal shell and must be safely grounded. Package Includes: 1 x Motor governor Note: The product may be updated constantly; due to different batches, the actual product may have slight differences in color and appearance, which does not affect use. Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.