General description Dimmer for AC 220V with a capacity of 9A and 4000W, designed for effective voltage regulation and motor fan speed control. This high-quality device utilizes a high-performance SCR as its internal chip, ensuring reliability and efficiency. Technical specifications Input Voltage: AC 220V Maximum Current: 9A Maximum Power: 4000W (under ohmic loads) Minimum Load for Adjustment: 60W Power under Inductive Load: 1/3 of the ohmic load Other information Thickened metal case for high temperature resistance and long service life Equipped with a universal multi-purpose socket and a current display Includes multiple protections to safeguard high-performance thyristors from overvoltage Note: The measured output voltage is virtual without a load; connect to a load of 20W or greater for accurate measurement Use caution with electronic products that have printed circuit boards