V-young Tech Co.,LTD established in 1999, is one of the leading manufacturer in China specializing in designing , researching , developing producing and selling high-frequency switching power supply , dc/ac power inverter. Frequency converter, adjustable power supply, battery charger, power distribution unit , rectifier system , dc-dc converter and so on. V-young power supply products are widely used in China Telecom, China Mobile, China Satellite Communication, and airport from all over the world, as well as Army, Public Security, Irrigation Works, Highway, and win many customersâ€™ trust with good quality and services.