Chinst production quality strictly according to the managemet system. Products pass CE, RoHS, or SGS certificates and other authorative certificates required by other clients in the world. Each new kind LED product from Chinst Company must be test at least 6 months before mass production. We also set up a whole system of purchase, producing, final examine, project test for controlling every production link so that to ensure the quality. Each batch of LED finished products from Chinst Company must be 100% testing before putting into market. In a word, our concept to product quality is "pursuing best, reaching better".