NEMA 4X, IP66 and NSF rated LED exit sign, UL listed for wet locations and certified for food service. Reinforced polycarbonate housing in white or black with a one-piece UV-stabilized polycarbonate lens, molded gasket and stainless steel screws. High-intensity red or green LEDs at 3 watts. Battery backup models use a 4.8V sealed NiCad battery for a minimum of 90 minutes of emergency operation, recharged within 24 hours.