E.S.D Environmental Protection and Technology Co.,Ltd is a producing enterprise invested solely by Dong dian Resources Holding Ltd.(HK), It was established in 2004 with the capital investment of fifty million HK dollars and possesses 12,000 m2 of manufacturing facilities. Development, production and retail of various types of solar lamps, photovoltaic power computer controller, electrode-less Lamp, LED application products, special power inverter used in communicating, DC-DC changing apparatus and high frequency wireless communicating products. And we also have the designing and installing capacity of solar&wind hybrid power system.