SANSI 500-Watt EQ A21 Daylight Medium Base (e-26) LED Light Bulb in the General Purpose LED Light Bulbs department at Lowes.com
Satco S1923 500 Watt 9500 Lumens T3 Halogen Double Ended Blade Base 120 Volt Clear 145mm Light Bulb, Dimmable - Halogen Bulbs - Amazon.com
FanNicoo 2 Pack 500W Equivalent LED Corn Light Bulb 5500 Lumen 6500K 60W Large Area Cool Daylight White E26/E27 Medium Base for Outdoor Indoor Garage Warehouse Factory Workshop Street Backyard - - Amazon.com
LEDVANCE sylvania t12 halogen tube light bulb, 500w, single-end mini can screw base, 10000 lumens,
Pinegreen Lighting 500-Watt Equivalent 10000 Lumens E26 LED Cob Light Bulb Daylight (5000K) (1-Bulb) CL-CB100 - The Home Depot
How many lumens does a 500 W halogen bulb produce? - Lunares blog