precise  purifying AC. Power Supply adopts the power regulation technology of sine energy distribution formula, which is advanced in the world and represents the latest development of AC. stabilizing technology. Its circuit is composed of sine energy distributor and large power wave filter by parallelling. It has the advantages as high accuracy of stabilization,strong overload capacity,high efficiency,successively working for long period and long service time etc., it is an ideal replacement for the 614 series electronic voltage stabilizer and magnetic saturating voltage stabilizer, also it can provide a quiet and reliable working environment.