Electronic Emergency Ballast with Backup Battery and Charger, Input Voltage: 120/277V, 90 Minute Illumination Time, 72 Hr Recharge. For use with the following 350-500 Lumen Compact & Linear Fluorescent Lamp Types: Operates one 2'- 4' or U-shaped fluorescent lamp for 90 minutes. (Compatible with most electronic T8 and magnetic T12, instant start, rapid start and slimline ballasts) 17-40W, (1) 4 ft T8, T12 or 4-Pin Long Compact.
