Description:_x000D_ This controller uses novel bi-directional high-power SCR. It can be very convenient adjust the current up to 25A, and solve the over current problem of the heating wire resistance is too small in the case of cooling causing good._x000D_ The output voltage is adjusted anywhere between 50V-220V for use with electrical appliances. It can use to such as electric stove, water heater tune thermal, lighting dimmer, small motor speed, electric iron thermostat, and achieve dimming, thermostats, pressure regulator effect._x000D_ _x000D_ _x000D_ _x000D_ Features_x000D_ This controller uses novel bi-directional high-power SCR, also can be very convenient adjust the current up to 25A._x000D_ _x000D_ The vogltage regulator can solve the over current problem of the heating wire resistance is too small in the case of cooling causing good._x000D_ The output voltage is adjusted anywhere between 50V-220V for use with electrical appliances._x000D_ It can use to such as electric stove, water heater tune thermal, lighting dimmer, small motor speed, electric iron thermostat, and achieve dimming, thermostats, pressure regulator effect._x000D_ Using high?quality materials, strong and durable, has a long service life._x000D_ _x000D_ _x000D_ Specification:_x000D_ -Input supply voltage: 110V ~ 250V AC_x000D_ -The output voltage:50V-250V (Output voltage