Lithonia EI500 M12 500 Lumen Battery Pack

Intended use operates most 2' or 4' linear or u-shaped single t8 or t12 fluorescent lamp for 90 minutes. compatible with most electronic t8 and magnetic t12, instant-start, rapid-start and slimline ballasts. field installable only. listings ul listed. construction low-profile black, 20-gauge steel, permanently sealed housing. rated 500 lumens with one f32t8 linear 4' lamp. other lamp lumen ratings will vary. patent integrated test switch pilot light. us patent no. 6, 522, 147. sealed, maintenance-free, high-temperature nickel-cadmium battery. dual-voltage input capability (120/277v).