Emergency Light 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 8.3 W Output Voltage 9.6V DC Width 6 27/64 in Length 10 27/64 in Height 13 15/16 in Head Lamps Adjustable Yes Operating Temp Range 0 Degrees to 50 Degrees C