Sumin Electronics Co., Ltd, which located nearby the West Lake, Hangzhou, specializes in research, manufacture and sale of switching power supply. Our main products include adaptor and open-frame power supply. We have most of our products obtained CCC, GS, CE, cTUVus, PSE, CB safety approvals. The products are ideal for used in the fields of 3C Industry, such as ADSL, Digital camera, LCD monitor, LCD TV, Notebook, PDA, POS, Scanner, Printer, etc. The company has gained ISO9000 quality system certificate . From the very beginning, We regard High reliability, Prompt delivery, Competitive price as our first objective.　We take the Quality and Image as the life of our enterprise. Mean while , we possess strong R&D center , can meet customer’s new requirement in short lead-time. Our manufacturing base located at Tonglu, A suburb County of Hangzhou, which occupies 2000 M2. The company has the capacity of 200K sets of switching power supplies per month.