Feit Electric 500-Watt Bright White (2800K) T3 R7 Base Dimmable Halogen Light Bulb (2-Pack) BPQ500T3/CL/2/HDRP - The Home Depot
10 Pack) 500W T3 DE Halogen 118mm J-Type 500 Watt Quarts Light Bulb: Amazon.com: Tools & Home Improvement
Feit Electric 500-Watt Warm White (3000K) T3 R7 Double-Ended Tube Dimmable Halogen Rough Service Light Bulb (48-Pack) BPQ500T3/CL/RS/2/24 - The Home Depot
Satco 500W 120V Clear R7S Base T3 Halogen Work Light Bulb - Foley Hardware