This controller uses a bi-directional high-power SCR to conveniently adjust the current up to 25A, helping prevent overcurrent issues caused by low resistance in heating elements during cooling. The output voltage is adjustable from 50V to 250V, making it suitable for various electrical appliances. It can be used with electric stoves, water heaters, lighting dimmers, small motors, electric irons, and more, achieving effects such as dimming, temperature control, and speed regulation. Specifications: Input supply voltage: 110V ~ 250V AC Output voltage: 50V ~ 250V AC (Output voltage ≤ Input supply voltage) Maximum output power: 2000W Maximum output current: 25A Voltage regulation range: 50V ~ 250V AC (Output voltage ≤ Input supply voltage) Operating environment temperature: -20°C ~ 40°C Size: Approx. 48 x 60 x 28mm Package included: 1 x 50-250V 25A AC Motor Speed Controller