Philips 42602-3 400W High Intensity Discharge (HID) Lamps | eBay
Feit Electric 400-Watt ED28 Shape Clear Metal Halide High Intensity Discharge E39 Mogul Base HID Light Bulb (4-Pack) MH400/U/ED28/HDRP/4 - The Home Depot
Philips 36881-1 400W High Intensity Discharge (HID) Lamps - 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