JNXQWE E11 Mini Candelabra Ceramic Screw Lamp Holder Base Socket,2-Pack E11 Mini Can Halogen Socket,E11 Lampholder with 8inch Leads 1000W,250V (with 1/8 Hickey) - Amazon.com
70W 150W 1000W R7S Ceramic Lamp Holder Double End Metal Halogen Lamp Base DIY Light Socket for Aquarium Sun Light Bracket Light - AliExpress
SYLVANIA 69012 - RSC - Ceramic Steatite Socket - 36 in. Leads - 16 AWG - 350 Deg. C - Use with Halogen and Metal Halide Lamps - Double Ended - Light Sockets - Amazon.com