This item has new two-way large power silicon controlled rectifier and the current can be up to 80A, which is a good solution to over-current of electric stove wire caused by low resistance during cooling It can easily adjust the output voltage on a scale of 0-100% (nonlinear) to power electric device This voltage regulator is adjusted with button which is much more stable than potentiometer Designed with large and thick heat sink that would enhance heat dissipation Voltage regulator has wave voltage absorbing circuit and effective protects large power silicon controlled rectifier, longer service life and more durable, Manufacturer: Kafuty-1