Led exit sign cergb, led life-cycle exceeding 10 years, red or green field selectable exit in ac only, includes long-life nickel cadmium (nicad) battery for ul recognized 90 minutes emergency lighting, molded-in template for wall mounting, canopy included for ceiling or end mounting, dual-voltage 120 or 277v ac input * damp location listed 20c to 30c (68f to 86f)