Feit Electric 500-Watt EQ T3 Bright White Recessed Double Contact Dimmable Halogen Light Bulb (2-Pack) in the Tube Light Bulbs department at Lowes.com
PHILIPS 118MM 500W HALOGEN R7s DOUBLE ENDED (MADE IN CHINA) Kuala Lumpur (KL), Selangor, Malaysia Supplier, Supply, Supplies, Distributor | JLL Electrical Sdn Bhd
Utilitech 500-Watt EQ T3 Bright White Recessed Double Contact Halogen Light Bulb (6-Pack) in the Tube Light Bulbs department at Lowes.com
Philips Halogen 500-Watt T3 Work and Security Light Bulb, Clear Bright White, Dimmable, Double Ended Base (2-Pack) - Walmart.com