This unit, of high-precision and fully automatic AC stabilizer was designed and produced by adopting automatic regulating principles, accepted internationally. Its pivotal part and devices are all imported ones, which features high-precision stabilization, minimal output wave distortion, small power consumption, compact size and lightweight. It can be widely applied in computer lab, experiment lab and factories, and it's ideal in providing stabilized voltage for high-class electrical appliances. Mean while, it can provide 110v for imported electrical appliances. Compared with other AC stabilizers, the unit has a better performance price ratio.