This edge-lit LED exit sign emits attention-grabbing, long-lasting illumination and operates on 120-277 VAC. The 2.5-watt light has a battery backup (NiCd 4.8V 500mAh) that provides 3 hours of illumination on a 24-hour charge. The sign's removable, slim acrylic face is adjustable on its aluminum housing for wall, ceiling, or sloped ceiling surface mounting. It can also be mounted on its side. A test button and LED charge indicator are located on the side of the light's housing. This UL-924-Listed LED light meets standards for emergency lighting and can be used in damp locations. Arrow decals and installation hardware are included. Available with green or red lettering. Lifetime warranty (limited 2-year warranty on battery).