Volts: 120-270V, Life Hours: 50,000, Emergency Exit Light, 6V Battery Voltage, 90 min. emergency operation. Green Color Contractor friendly design, provides fast & "e-z" installation, completely self-contained, fully automatic operation, compact, low profile design in neutral finish, universal transformer for 120vac or 277vac, injection-molded, v-o flame retardant, high impact, thermoplastic housing, universal mounting plate provides quick and "e-z" installation. Charge rate/power on led indicator light, energy consumption of less than 4 watts for red letters and less than 2 watts for green letters, led lamp life of 25 years plus, listed for damp location, universal mounting canopy for side or top installation, standard ac and emergency units available, ni-cad battery on emergency (em) units.