Jaenmsa R7S Bulbs,5 Pack Halogen Bulbs R7S T3 118mm 500W 120V,J Type Halogen Light Bulb with Long Lifespan,120 Volt Double Ended Light Bulbs for Work,Security,Landscape Lights,Dimmable,4.6 Inch - Amazon.com
Satco 500W 120V Clear R7S Base T3 Halogen Work Light Bulb - Foley Hardware
Philips Halogen 500-Watt T3 Work and Security Light Bulb, Clear Bright White, Dimmable, Double Ended Base (2-Pack) - Walmart.com
Feit Electric 500W Clear Halogen T3 Light Bulb, R7 Base, 2-Pack at Tractor Supply Co.
Feit Electric 500-Watt Bright White (2800K) T3 R7 Base Dimmable Halogen Light Bulb (2-Pack) BPQ500T3/CL/2/HDRP - The Home Depot