MPQ3406 Features: * Fluorescent emergency lighting ballast * For power failures * Allows the same fixture to be used for both normal and emergency operation * 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 * contains a battery, charger, and inverter circuit in a single package * Can be mounted in the wire way or on top of the fixture * See pdf for lamp details * UL listed for factory installation or retrofit applications * Lumens: 1400 Specifications: * Dual 120 / 277 volt input Dimensions: * Dimensions: 1.5"" x 2.4"" W x 13.3"" D Warranty: * 1 Year warranty