Completely self-contained. Fully automatic operation. Compact, low-profile design in neutral finish. * Push-to-test switch. Automatic, low-voltage disconnect (LVD). 120V/277V dual voltage operation standard. * Injection-molded, V-O flame retardant, high-impact thermoplastic housing. Charge rate/power "ON" LED indicator light. Energy consumption of 3.2W for red letters and 3.8W for green letters. * LED lamp life of 25+ years. UL listed for damp location. Universal mounting canopy included. Ni-Cad battery on EM units. * Size: 12"L x 7.5" H x 1.5 D