... silver lamp holder / lamp base/ caps 15.5*11mm / 15.5x12mm/ 15.5x13mm silver color G13 T5 fluorescent lamp or LED lamp base ... 15.5x13mmThe company is specializing in designing and producing fluorescent lamp base such G5,G13, T5,T8,T9,T10 ... Caps are widely exported to Europe market, USA market.T8 Blue polished fluorscent lamp or led lamp base G13 T5 silver lamp holder , Lamp base , fluorescent lamp caps ...