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
Bajaj 500W Halogen Fitting, लाइट फिटिंग in Budhwar Peth, Pune , Baba Electricals | ID: 6813197891
10 HALOGEN LIGHT BULB 220-240V 500W 500 WATT J TYPE T3 118mm (R7s) Halogen Bulbs | eBay
5PCS / Lot Super Bright Halogen Lamp Light Bulb 500W Halogen 220V 240V 2800K Warm White Indoor Halogen J TYPE T3 118mm (R7s)|Light Beads| - AliExpress
General Electric Q500T3/CL Quartzline T2.5 Halogen Lamp 23731
1-10V Dimming 500 Watt LED Flood Light to Replace 1500W Halogen Light, LED Flood Lamp Outdoor Tennis Court Lighting - China 500W LED Flood Light, LED Flood Light | Made-in-China.com