BOJACK Motor Speed Controllers 2000W SCR AC Voltage Regulator 50 220V PWM Electronic Dimmer Thermostat Controller with External Knob and Wire

【Adjustable】The output voltage can be easily adjusted from 50V to 220V. 【Benefit】Voltage regulator has new two-way large power silicon controlled rectifier and the current can be up to 25A, which is a good solution to over current of electric stove wire caused by low resistance during cooling. 【Durable】It has wave voltage absorption circuit to effectively protect large power silicon controlled rectifier. 【Easy to use】Simply connect input terminals to either 220V wire (live wire or neutral wire) and output to load, then rotate knob to control voltage. 【Application】Could be widely used as speed controller on small motors, heat controller on electric stoves, water heaters, light dimmer on lamps or temperature controller on electric soldering iron, etc. So as to achieve the effects of dimming, temperature, voltage and speed.