OhLectric Halogen Bulb Socket - MR16 Base Porcelain Lamp Holder - Bi-pin Lamp Socket - 8-Inch Lead, Incandescent Light Holder - Best Heat Resistant - Stripped End for Easy Connect - White - OL-40892 - Amazon.com
YiLighting - Ceramic Miniature Bi-Pin MR16 Lamp Base Socket Holder Connector Adapter For MR16, GU5.3, G4, MR11,GY6.35 GZ4 Female Base Light Bulbs(20pcs) - Amazon.com
High Quality Fluorescent Lamp Holder Types Bulb Base With Ceramic Halogen Socket And Pottery Connector MR16 MR11 GU5.3 G4 12V To 250V Available In 5 From Lucmbahamoute, $21.22 | DHgate.Com
Mini Bi-Pin MR16 Socket Holder for Light Bulbs with Base GU5.3, G4, MR11, MR16 - Amazon.com