SYLVANIA 64468 - 1000 Watt - BT56 - Metal Halide Unprotected Arc Tube - 4000K - ANSI M47/S - Mogul Base - Universal Burn - M1000/U FI Measures at 32

Measures at 32

This a19 household LED bulb lasts an astounding 25000 hours on averages

Cool white (4000K) lighting at a bright 4220 lumens using only 40 watts of electricity

Sylvania 22303 - FBO28/830/XP/SS/ECO U Shaped T8 Fluorescent Tube Light Bulb

SYLVANIA 64468 - 1000 Watt - BT56 - Metal Halide Unprotected Arc Tube - 4000K - ANSI M47/S - Mogul Base - Universal Burn - M1000/U FI Measures at 32Please note that metal halide lamps cannot be operated without a ballast. Suitable for open luminaires only if operated vertically + 15 degrees, provided the installation is not near people or flammable or combustible material; otherwise, this lamp must be operated in a suitably enclosed luminaire. Ideal for industrial and retail high low bays, and parking lots Long life up to 20,000 hours for 360 and 400 watt lamps Up to 100 lumens per watt Mercury