Exit Sign with Battery Backup Fixture Wattage 5.0 Lamp Type LED Letter Color Red Background Color White Number of Faces 1 Housing Color White Housing Material 20 ga. Steel Mounting Universal Voltage 120/277 Depth 2-3/8 In. Height 11-1/4 In. Width 12-3/8 In. Battery Type Nickel Cadmium Emergency Illumination Time 90 min. Operating Temp Range 32 Degrees to 132 Degrees F Letter Size 1 in Stroke x 6 in High Optional Guard 4YFV2 Includes Diagnostic Test Light and Switch