FeaturesMatches HCX combination emergency lighting unit/LED exit sign stylingAll die cast aluminum constructionSingle or twin lamp fixtures5 W halogen MR16 lamps supplied standardHousing rated to 50 W maximumMounts to 3-1/2 in octagonal or square 2-gang boxesMaintenance-free, premium grade lead acid battery or optional nickel cadmium batteryLow voltage battery disconnect68 to 86 deg F temperature90 min extended runtimeSpectron® self-test self-diagnostic electronics