Bodine Electronic Emergency Fluorescent Ballast Input Voltage 120 to 277V AC Number of Bulbs Supported 1 2 Max Bulb Watts 215 W 4-Pin Biax T10 T12 T5 T5HO T8 T9 Ballast Bulb Type Initial Lumens 500 to 1600 lm Galvanized Steel Housing Material 13 5/16 in Length 2 1/4 in Width 1 3/16 in Height Low Profile 90 min Emergency Illumination Time 24 hr Recharge Time