Sylvania 1000-Watt BT37 Specialty Halogen Light Bulb

A 1,000-Watt metal arc pulse start compact quartz metal halide lamp. With a reduced outer jacket and reduced color shift. Features include: E39 base, BT37 bulb, enclosed fixture rated, universal burn, clear and 3800K.|107800-Lumens|9,000 life - horizontal|65 CRI|3,800 color temperature|Lamps classified as E-type are to be used only in suitably enclosed luminaries, see lamp warning|Warm up time - 2 to 4-minute