The NREL Edge Lit Series combines a prestigious appearance with a Powder Coat Finish Aluminum Bezel. A Crystal Clear Acrylic panel and Abrasive Free Installation Gloves ship standard with every unit. Construction Housing is High Impact V5 Flame Retardant Thermoplastic, Legend is Crystal Clear Acrylic. Bezel is constructed of Heavy Duty Aluminum. Finishes Bezel in White or Black, Legend is Universal Clear or Mirror. Illumination Provided by high output, low power consumption LED's. 1.5 Watts for Red / 2 Watts for Green. Installation Shipped complete with Installation Gloves, 1-Recess Box, 1-Aluminum Bezel, and Hardware. Electrical Field Selectable 120/277 Input Voltage Transformer. Automatic Low Voltage Disconnect (LVD) protects the battery from deep discharge. When normal AC power fails the solid state transfer switch automatically connects to the battery for 3 HOURS of power and is recharged in 24hours (EM Model only). Features º Super Bright Low Consumption LED's º Damp Location Rated º Universal Clear or Mirror Legend º Universal On/Off Chevrons Warranty Three Year Full Electronics Warranty Ten Year Battery Warranty (Five Years Full / Five Years Pro-rated)