Sylvania 58996 500W T3 Double-Ended Halogen Lamp, R7s Base Model: SYL-58996 Sylvania 58996 500W T3 Double-Ended Halogen Lamp, R7s Base, 2950KThe Sylvania 58996 is a 500-Watt T3 double-ended Class C tungsten halogen lamp built on a recessed single-contact R7s base for use on... Sylvania $6.69 Sale