Emergency Lights, Voltage – Emergency Lighting and Exit Signs 120/277, Lamp Watts – Emergency Lighting and Exit Signs 3.0 W, Lighting Technology LED, Housing Material – Emergency Lighting and Exit Signs Plastic, Housing Color – Emergency Lighting and Exit Signs Gray, Battery Chemistry Lithium Iron Phosphate, Number of Lamp Heads 2, Emergency Illumination Time – Emergency Lighting and Exit Signs 90 min, Watts @ 90 Minutes 6 W, Output Voltage 18 V DC, Width 6 1/16 in, Length 9 3/4 in