The single-phase smart AC voltage stabilizer is an electrical device used in homes and small commercial environments. It monitors fluctuations in grid voltage in real time and automatically adjusts the output voltage to ensure stable and reliable power supply. The voltage regulator has intelligent control functions that can be set and adjusted according to user needs, and is equipped with multiple protection functions, such as overload protection, short circuit protection, temperature protection, etc., to ensure the safe operation of the equipment. The product is small in size and easy to install. It not only provides stable power supply, but also reduces energy consumption and electricity bills.