This voltage regulator is designed for motor speed regulation, allowing precise output voltage adjustments via a multi-ring potentiometer. It offers continuous AC voltage adjustment from 0V to 220V with zero and delay, ensuring ultra-high heat dissipation. The device can be connected in series with lamps or home appliances, enabling control over dimming, speed, voltage, and temperature by simply rotating the knob. Equipped with anti-surge and anti- protection, along with RC absorption for enhanced safety. It features a new two-way large power silicon controlled rectifier, capable of handling currents up to 100A.