Emergency Light, Voltage – Emergency Lighting and Exit Signs 120/277, Lamp Watts – Emergency Lighting and Exit Signs 1.0 W, Lighting Technology LED, Housing Material – Emergency Lighting and Exit Signs Plastic, Housing Color – Emergency Lighting and Exit Signs White, Battery Chemistry Nickel-Metal Hydride, Number of Lamp Heads 2, Emergency Illumination Time – Emergency Lighting and Exit Signs 90 min, Watts @ 90 Minutes 2 W, Output Voltage 1.2V DC, Width 2 1/4 in, Length 8 1/2 in, Height 5 in