Feature: 1. HIGH POWER SCR: Using bidirectional high power SCR, the current is 25A, which solves the overcurrent problem and can be adjusted arbitrarily between AC 50‑220V. 2. WITH POTENTIOMETER: Rotating the potentiometer to adjust the brightness, speed, voltage, temperature, etc. of the motor, can be used for home appliances such as lamps. 3. EASY OPERATION: Can be used by electrical appliances with a power less than 2000W, the potentiometer is equipped with nut, which can be used without adding any components. 4. CIRCUIT PROTECTION: The voltage regulator is equipped with a peak voltage absorption circuit to protect high power thyristor, ensuring stable performance and longer service life. 5. APPLICABLE SCENES: Suitable for heat regulation of water heater, light regulation of lamp, speed regulation of small motor, temperature regulation of electric soldering iron, etc. Specification: Item Type: Voltage Regulator Input Voltage: AC 220V Voltage Regulation: AC 50V-220V Maximum Power: 2000W Maximum Current: 25A . Package List: 2 x Voltage Regulator