... ≥0.5≤1.710000Founded in 1995, Shanghai Chenghe Industry Co., Ltd. is located in Songjiang District of Shanghai. Our company has 43,056 ... , torchieres, ceiling fixtures, Led lamps and electronic ballasts. We have a qualified team of technology, advanced producing and inspecting facilities.Since 2003 ... , CSA, Energy Star ,GS, CE and FCC. supply T8 32W Electronic Ballast