Feit Electric 500-Watt EQ T3 Dimmable Bright White Tubular Rough Service Halogen Light Bulb (2-Pack) in the Halogen Light Bulbs department at Lowes.com
300w Halogen Lamp Led Bulb Retrofit 118mm Led R7s 20w 5000 Lumen Led Projector 30w 118mm R7s Led - Buy 300w Halogen Lamp Led Bulb Retrofit,118mm Led R7s 20w,5000 Lumen Led Projector
GE Lighting 22121 Halogen Bulb, 250-Watt, 4000-Lumen, Tubular T2.5 Shape, Recessed Single Contact R7S Base, 1-Pack - - Amazon.com
GE Halogen 19379 300-Watt, 5950-Lumen T2.5 Light Bulb with Recessed Single Contact (R7s) Base, 1-Pack - Walmart.com