Die-formed heavy 18 gauge steel cabinet Universal transformer for 120 or 277 VAC 1-1/2 hours of light to an battery voltage of 87- 1/2% or nominal voltage Remote fixture capability Automatic brownout feature Solid-state charging circuit Long-life, lead calcium maintenance free battery Solid-state line-latched low voltage disconnect provide 100% load disconnect protection to guard against battery deep discharge Fully adjustable lighting heads AC lockout feature reduces installation time Dual output circuits for load distribution