Completely self-contained. Fully-automatic operation. Compact, low-profile design in neutral finish. Universal mounting canopy for top installation. Push-to-test switch. 6-volt premium grade, pure lead battery. Solid state charger. Automatic, low-voltagedisconnect (LVD). Universal transformer for 120 or 277 VAC operation. Standard with two fully-adjustable, glare-free lighting heads with 130 volt lamps. Injection-molded, V-O flame retardant, high-impact thermoplastic housing.