ML 500W E40 220-230V 1SL/6 | 928097057791 | Philips lighting
Philips 415729 500-Watt 4.7-Inch T3 RSC 120-Volt Light Bulb with Double Ended Base, 2-Pack - Halogen Bulbs - Amazon.com
Philips Work Light Security 500w 9500 Lumen 120v Halogen T3 RSC Base 4 for sale online | eBay
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
Philips Halogen 500-Watt T3 Work and Security Light Bulb, Clear Bright White, Dimmable, Double Ended Base (2-Pack) - Walmart.com