Variac Auto Transformer 110V 0-300V Adjustable Voltage Regulator with LCD Display STG-1000W Single Phase Power Supply Converter Transformer for US Standard

Build to Last: Made of iron, this voltage regulator is impact-resistant, ensuring your long-term use. Powerful Function: This voltage regulator can adjust the output voltage of the AC power supply to meet the working requirements of different electrical equipment. High Efficiency: Pure copper coils ensure high energy conversion efficiency and maintain circuit stability, which is high efficiency. High Safety: This voltage regulator has fuses, overload protection, and overcurrent protection, allowing you to use this voltage regulator safely. Easy to Adjust: You can adjust the voltage (0-300V)by rotating the knob, which is convenient.