Compact, low profile LED exit signs are as brilliant and visible as standard incandescent signs, yet use a fraction of the power. LED light sources require no maintenance for 25 years-saving greatly on maintenance and upkeep costs. LED exits are ideal for commercial and industrial standard non-emergency applications where low maintenance and operating costs are a must. Die-cast exit sign utilizing Light Emitting Diode (LED) modules as the primary light source for economy operation. Exit sign includes a backup NiCad battery for 90 minute operation under emergency applications where primary power source has been interrupted or terminated. LED exit sign with 6" green letters and brushed, die-cast aluminum dual face with black housing. Input Voltage: 120/277VAC Wattage: 2.5W Finish: Brushed, die-cast Aluminum Double Face with Black Face: 6" high green letters with color diffusion. Two front faces sent with dual face unit. Mounting: Wall, side, or ceilling mount. All mounting hardware included Self Diagnostic: Automatically monitors and tests to ensure proper operation. Self tests one minute each month, thirty minutes every six months and ninety minutes annually. Listing: cULus Listed for Damp Locations, UL 924, Title 20, NFPA, NFPA 101