GE Multi Vapor Chromafit 250-Watt Ed28 For Indoor or Enclosed Outdoor Use Only Metal Halide HID Light Bulb in the HID Light Bulbs department at Lowes.com
Feit Electric 250-Watt ED28 Shape Clear Metal Halide High Intensity Discharge E39 Mogul Base HID Light Bulb (1-Bulb) MH250/U/HDRP - The Home Depot
Philips 140822 High Intensity Discharge Metal Halide 250-Watt ED28 Mogul Base Light Bulb - - Amazon.com