Edge-lit Exit Sign, Letter Color Red, Number of Faces 1, Directional Indicators - Emergency Lighting and Exit Signs Chevron Right , Lighting Technology LED, Housing Material - Emergency Lighting and Exit Signs Steel, Housing Color - Emergency Lighting and Exit Signs White, Emergency Back Up Battery Yes, Battery Chemistry Nickel Cadmium, Voltage - Emergency Lighting and Exit Signs 120/277, Number of Lamp Heads 0, Lamp Head Light Source - Emergency Lighting and Exit Signs No Heads