porcelain lamp holder 1. Series:E27 2. Voltage:250v 3. Certification:CE porcelain lamp socket,screw lampholder, lamp base1. Series: E27, E26, E40, E14, B222. Certification: CE, LVD, ROHS3. Inserted metal: according to buyer's choiceA. Our company FUZHOU JIETUO IMP. & EXP. CO., LTD, is an enterprise engaged in the exportation and manufacturer of all kinds of lamp holder. "The best quality, the ...