5pcs / Lot Halogen Light Bulb 220v-240v 1500w 1500 Watt J Type T3 R7s J254 189mm - Light Beads - AliExpress
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
Feit Electric 250-Watt EQ T3 Dimmable Bright White Tubular Light Fixture Halogen Light Bulb (2-Pack) in the Halogen Light Bulbs department at Lowes.com