220V driven motor, 4000W AC voltage regulator, 220V power supply, motor speed controller, electric motor speed regulator

【Suitable Adjustable Voltage Range】 The adjustable voltage range is truly smooth and adjustable from 10V to 220V, making it more suitable for devices requiring low voltage to drive the heating wire. Easily control voltage, speed, temperature, and more via the adjustable rotary knob. 【Dual Capacitor Design】 Adopts an amperometric capacitor + a metal film capacitor to absorb surges and voltage spikes, making it more efficient and safer to use. 【Wide Application】 Use to adjust the speed, brightness, voltage, and temperature of various electronic devices, such as electric furnaces, water heaters, lamps, small motors, etc. 【Durable Performance】 Uses a high-quality housing made of 1.5mm thick aluminum and stainless steel, safe and practical.