What we do Shanghai Chang Yang Opto-Electronic Technology Co., Ltd. (SCT) is a high-tech enterprise specializing in developing and manufacturing LED Lights that mainly are used in following field more then 9 years: 1, Illuminated Advertising/Sign/Channel Letter, like LED Module, LED Strip etc, . 2, Architectural Illunination, like LED Digital tube, LED *****, . 3, Commerical Lighting.Like LED Down Light, MR16 etc, . 4, Domestic Light, Like LED T8 Tube etc, . 5, Festival Decoration, Like LED Rope light etc, . 6, OEM service or Custom-Made How we do We integrate design, development, manufacture, sale, project design construction and service.We work in accordance with the standard of ISO9001 certification and strictly control production detail which extends into the final product. Whatâ??s Our goal Specialty, more care, endless service as our theory. We also continue to do our endeavor to satisfy our customer and globalize worldwide markets with SCT products.