Steel Exit sign with Red or Green Letters;Universal Single or Double-Face;Includes models with Dynamic Symbol of Accessibility to meet State of Connecticut Building Code;Ceiling, Wall or End Mounted;Includes long-life Nickel Metal Hydride battery for UL recognized 90 minute emergency lighting;Damp Location Listed 10C to 40C(50F to 104F);Includes push-to-test switch and AC-On indicator;