Procelain lamp base : 1. E14, E26, E27, E39, E40 series 2. Certification: UL RoHS 3. OEM is available. ... , lamp holder, lamp base, e26 lampholder,e26 lampbase, e26 lamp holder, e26 lamp base,porcelain lampholder, porcelain lampbase,e26 porcelain lampholder,e26 porcelain lampbase,porcelain ...