The TDGC2 regulator have many adavantages: such as no wave form distortion, Small in size, light in weight, high efficiency, easy-to-run, reliable and able to operate for a long time. It can be widely used in industies such as chemical metallurgical, instrumental, Mechanical and electrical light industry, as for scientific experiments, public utility and domestic electrical appliances in order to adjust voltage speed or light to control temperature and power, It is kind of ideal adjustable AC power source.