Factory assembled emergency unit/LED exit sign;UV stable thermoplastic housing;5 watt halogen lamps in emergency lighting heads;Optional 3 Watt LED MR16 lamps;120/277 VAC, 60 Hz. operation;Maintenance-free lead-calcium battery;Low-voltage battery disconnect;Test switch and AC-On indicator light;Long-life LED lamps in Exit housing;Universal single/double face;Choice of red or green letters;Choice of white or black housing;Available with Spectron self-testing/self-diagnostic electronics with time-delay retansfer (TDR) standard;Damp Location Listed models available;Remote capacity models available;Optional: Unit supplied without lamp heads;Optional: Fire alarm panel interface;Optional: Flasher and/or audible alarm module;Optional: 220-240 VAC, 60Hz. operation;Optional: SALIDA exit face legend;Standard 20C - 30C (68F - 86F);Damp Location model: 10C - 40C (50F - 104F);UL 924 Listed;U.S. Patent Nos. D406,279, D400,991, 6,280,042, and 6,019,477;Damp location listed (selected models);NFPA 101 (Life Safety Code);NFPA 70 (National Electrical Code);Remote capacity models have a minimum run-time of 120 minutes when no remotes are installed;