What is HID lighting? Is it right for your application?
HID VS LED
250-Watt ED18 High Pressure Sodium High Intensity Discharge HID Light Bulb - Breaker Outlet
Feit Electric 400-Watt ED28 Shape Clear Metal Halide High Intensity Discharge E39 Mogul Base HID Light Bulb (12-Pack) MH400/U/ED28/HDRP/12 - The Home Depot