5PCS / Lot Super Bright Halogen Lamp Light Bulb 500W Halogen 220V-240V 2800K Warm White Indoor Halogen J TYPE T3 118mm (R7s)
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
Utilitech 500-Watt EQ T3 Bright White Recessed Double Contact Halogen Light Bulb (6-Pack) in the Tube Light Bulbs department at Lowes.com
Feit Electric 500-Watt Bright White (2800K) T3 R7 Base Dimmable Halogen Light Bulb (2-Pack) BPQ500T3/CL/2/HDRP - The Home Depot
10Pcs HALOGEN LIGHT BULB 220-240V 500W 500 WATT J TYPE T3 118mm (R7s)
500 Watt Warm White T3 Dimmable Halogen Rough Service Light Bulb 2 Pack (BPQ500T3/CL/RS/2) - Halogen Bulbs - Amazon.com
Philips Halogen 500-Watt T3 Work and Security Light Bulb, Clear Bright White, Dimmable, Double Ended Base (2-Pack) - Walmart.com
5PC Light Bulb 120V 500W 500 Watt J Type T3 R7S 118mm Double Ended AJ# | eBay
Unidentified MFG - 9-202 - Lamps & Lights. Quartz Tungsten J Type T3 Halogen Lamp, 130V 500 watt.
10Pcs HALOGEN LIGHT BULB 220-240V 500W 500 WATT J TYPE T3 118mm (R7s) - AliExpress