Hubbell cels2rne led edge-lit exit, double-face, red letters, surface mount, w/battery back-up superior panel illumination w/ red letters, led life-cycle of more than 10 years, 120/277v input, includes long-life nickel cadmium battery for 90 minute emergency lighting, field installed directional arrow indicators with temlatek mirror divider, provided w/ test switch & ac-on indicator, surface mount with clam-shell design for easy installation & access to internal circuitry, canopy included