PHILIPS 30347-9 150W High Intensity Discharge (HID) Lamps - High Pressure Sodium Bulbs - Amazon.com
Gaseous discharge lamps
Philips 100W Clear ED17 Soft White Metal Halide Bulb | MHC100/U/M/3K ELITE | Bulbs.com
Philips MSR6000/SE/HR Gas Discharge Lamp (6,000W/125V) 36042-0
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