Explosion proof emergency fluorescent light combination - 4 foot - 2 T8 lamps - class i, div i(-pendant-5000k). made in the USA the Larson electronics epl-emg-48-2l-t8 explosion proof emergency lights and fluorescent light combination is US/Canada u.L. Approved class 1 division 1, class 1 division 2 and ideal for hazardous locations where flammable chemical/petrochemical vapors exist or have the potential to exist. The epl-emg-48-2l-t8 is a 4 foot long, 2 lamp, UL listed class 1 division 1 and class 2 division 1and 2 explosion proof fluorescent light which is equipped with an added battery backup providing 90 minutes of emergency runtime. This T6 temperature rated Fixture comes standard with two T8 fluorescent lamps which produce a combined 5,500 lumens of light. This Fixture is multi-voltage capable and provides operators in hazardous locations with a reliable and durable lighting solution that provides explosion proof protection along with the security of an emergency battery backup. This fluorescent light works, mounts and is wired like our epl-48-2l explosion proof fluorescent light fixtures. The main difference is that we attach an extra Bodine ballast box to the unit that adds emergency light functionality to the Fixture. This explosion proof emergency light will run the standard 90 minutes after power is lost. The light recharges the battery once electrical power is restored. Standard configuration includes a single emergency ballast that will run a single lamp at 2750 lumens for 90 minutes. For an additional charge, a second ballast can be added to run a second lamp for 5500 TOTAL lumens output for 90 minutes. The battery backup unit includes a switched leg for turning the light Fixture on/off without kicking the unit into emergency mode. Note on lamps: this unit comes equipped with an electronic ballast and f32-t8/841 bulbs which produce 2750 lumens per bulb and have a rated lifespan of 24,000 hours.