Chinst (CST) Illuminication Co., Ltd, located in Shenzhen city in China, is professionally engaged in R&D, manufacturing, marketing and installation guide of LED products. The engaged LED products in CST Company involves LED Panel Light, LED Tube Light, LED Neon Light, LED Flood Light, LED Highbay Light, LED Street Light, LED Spotlight, Bulbs and LED Strip, which are used around the world in decorating millions of homes, landmarks, buildings, workplaces, shopping centers and alike, and make the world more colorful. CST excellent developing group, advanced manufacturing base, expertized instrument can research new products according to market requirement and client's demand, now CST products with most high-quality and reasonable price is welcomed by numerous users. CST have implemented ISO9001,2000 quality management, production quality strictly according to the managemet system. All products must pass ISO9001, CE, ROHS, or SGS certificates and other authoritative certificates required by other clients in the world. Each new kind LED product from CST Company must be test at least 6 months before mass production; Also we setup a whole system of purchase, producing, final examine, project test system for controlling every production link so that to ensure the quality of finished. each batch of LED finished products from CST Company must be 100% testing before putting into market.. In a word, our concept to product quality is "pursuing best, reaching better".