LED Emergency Battery Backup Lighting Kit - 6W - 760 lumens | Super Bright LEDs
E2Lighting LED Emergency Driver E2-EBBU-10W, Emergency Battery Backup for LED fixtures with External Drivers, Supports 120V-277V, UL-Listed with 5-Year Warranty, Battery Backup LED Driver - Amazon.com
Litetronics EB20 20 Watt Emergency Battery Backup 90-Min Operating Time for High Bay Fixtures
15W Emergency Backup Battery LED Driver - ORE LIGHTING