Edge-lit Exit Sign Letter Color Green Number of Faces 1 Directional Indicators - Emergency Lighting and Exit Signs No Directional Indicators Light 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 Lead Calcium Voltage - Emergency Lighting and Exit Signs 120/277 Number of Lamp Heads 0 Lamp Head Light Source - Emergency Lighting and Exit Signs No Heads