Fluorescent emergency ballast that allows the same fixture to be used for both normal and emergency operation. In the event of a power failure, the FPDL-32 switches to the emergency mode and operates one of the existing lamps for 90 minutes. The unit contains a battery, charger, and inverter circuit in a single can. The FPDL-32 can be used with most 2’ - 4’ T8 thru T12 lamps and 28W T5 lamps, with an initial output of up to 500 lumens for one lamp and can be mounted in the wireway or on top of the fixture. The FPDL-32 delivers high performance in a slim design, and is ideal for use in fixtures where ballast compartment space is limited.