Simply Conserve Corn Cob 16800 Lumen EX39 Base 400-Watt EQ ED17 Daylight EX39 LED Light Bulb (2-Pack) in the General Purpose Light Bulbs department at Lowes.com
100 Watt LED Corn Bulb, Replaces 400 Watt HID, 15,000 Lumen, Approved for Enclosed Fixture, 5 Year Warranty - LED Global Supply
Sylvania 400 Watt Clear ED28 Cool White Metal Halide Bulb | M400/U/ED28 | Bulbs.com
Sylvania Led Desk Lamp 6 Watt 400 Lumens 3000K AC Plug In E22539 NIB | eBay
SON-T 400W E E40 1SL | 928487300097 | Philips lighting
Howard Lighting H33GL-400/DX 400-Watt ED37 Coated Mercury Vapor Mogul Base Lamp
400 W Metal Halide Tubular Lamp E40 Base 5055875514973 | eBay
Orein 400-Watt Equivalent ED37 Corn Cobb HID LED Light Bulb Daylight (1-Bulb) A837A400NDX3901 - The Home Depot
400w HPIT Plus Tubular Metal Halide Discharge Lamp 645 4500k Cool White [Giant Edison Screw - E40 - GES Cap] (Philips 400HPITPLUS VZ) - Amazon.com
Feit Electric 400-Watt ED28 Shape Clear Metal Halide High Intensity Discharge E39 Mogul Base HID Light Bulb (1-Bulb) MH400/U/ED28/HDRP - The Home Depot
HPI-T-400W PLUS Metal Halide Lamp | AAMSCO Lighting
Hortilux Metal Ace Conversion (HPS to Metal Halide) Lamp, 400W
Philips 400W Clear ED28 Cool White Metal Halide Bulb | MH400/U/ED28 | Bulbs .com