Tatco LED Exit Sign with Battery Back-Up, 8 3/4in x 12 1/4in x 2 1/2in, White

Automatically turns on when power goes out to provide 90 minutes of emergency operation Energy-saving LED light lasts up to 25 years. Consumes less than 2 watts and eliminates lamp changes. Sealed maintenance-free battery with fully automatic charger lasts up to 10 years. Also offers rugged polycarbonate construction, 120/277 dual voltage operation and front and rear stencils with snap-out directionals. Mounts on the ceiling, wall or other surface. UL listed.