Hefei spruce photoelectric technology co., LTD., is a no wafer fabless IC design company, is China university of science and technology institute of advanced technology incubation enterprise, focus on research and development communication, application-specific integrated circuit for direct-drive LED lighting, to solve the problem of LED lighting driver reliability and cost. And has independent intellectual property rights has won more than a 2 Chinese invention patent and utility model patents, and international patents and won a silver medal of inventions fair in Geneva, through the technological achievements appraisal, reached the international advanced level.