Low Profile Fluorescent Emergency Lighting Ballasts 500 Lumens T5-T8 - Fluorescent Emergency Lighting Ballasts for Power Failures.Low Profile Fluorescent Emergency Lighting Ballasts 500 Lumens T5-T8 features include: Fluorescent Emergency Ballast allows the same fixture to be used for both normal and emergency lighting In the event of a Power Failure, the Ballast Switches to the Emergency Mode and operates one or two of the existing lamps for a minimum of 90 minutes The unit contains a Ni-Cad Battery, Charger, and Inverter Circuit in a single package. The ballast can be mounted in the wireway or on top of the fixture, and is UL listed for factory installation or retrofit applicationsLow profile ballasts have Time Delay Feature for end of life circuitry to prevent AC Ballast from shutting down when transitioning from Emergency Mode back to AC Mode Low Profile ballasts have open circuit insulation feature to protect unit when load is absentLow Profile ballasts are rated for use with T5 T8 single or bi-pin 1 or 2 lamp, 18-50W 4-Pin Long Compact Rapid Start, 32W 4-Pin Compact, 24-32W U-Bend FBT8 lamps from Phillips, GE, Osram or equal Low profile ballasts are compatible with Instant Start Rapid Start Ballasts 90 minute minimum emergency power, 24 hour recharge time Temperature Range: 68deg;F to 122deg;F(20deg;C to 50deg;C) 120/277 Volt 60 Hz Damp Location Listed UL Listed 5 Year Warranty Order Qty of 1 = 1 Piece Spec Sheet Below is more info on our Low Profile Fluorescent Emergency Lighting Ballasts 500 Lumens T5-T8