FLOOD LIGHT HALOGEN FITTINGS WITH LAMP – SFLH005 – 1000W HALOGEN LAMP FIXTURE WITH 1000 W LAMP – Samson Lighting
70W 150W 1000W R7S Ceramic Lamp Holder Double End Metal Halogen Lamp Base DIY Light Socket for Aquarium Sun Light Bracket Light - AliExpress
Fankerba - Fankerba - 2PCs Ceramic R7S Lamp Socket,Off-White Lamp Holder Base AC 110-250V,75-1000W for Single-Ended of Metal Halide Lamp Head: Amazon.com: Tools & Home Improvement
70W 150W 1000W R7S Ceramic Lamp Holder Double End Metal Halogen Lamp Base DIY Light Socket for Aquarium Sun Light Bracket Light - AliExpress