Edge Lit Exit Sign/ Single Face Available Letter Colors: Green Or Red Injection-Molded Thermoplastic ABS Housing UL-94V-0 Flame Rating, Fire-Resistant Input Voltage: 120-277V Power Consumption: 3W Max. Output: 1W Max. 3.6V Nickel Cadmium Battery Charging Time: 24 Hours Discharge Time: 90 Minutes Operating Temperature: 0°C~40°C Dimensions: 310 X 257 X 110mm