Energy Saving Nominal & rated lamp luminous flux in lumen (lm) 806 Nominal & rated lamp Wattage Consumption (W) 100 Wattage Incandescent Equivalent (W) 60 Energy Saving Compared to Incandescent () 83EU label Energy Rating AEfficiency Lumen per Watt (lm W) 81 Color Quality Color Type Warm white Color Temperature in Kelvin (K) 3000 Color Rendering index (Ra) 80 Dimensions Light Bulb Diameter (mm) 55 Light Bulb Weight (g) 67 Base Socket E27 Light Bulb Length (mm) 108 Nominal & rated lamp lifetime in hours (h) 15000 Lifetime in years (at 27 hours average usage per day) 15 years Lumen Maintenance Factor at the end of nominal life 70 Quickstart Light Quick Start (lm) 01sec 100 Time to reach 60 of light output (sec) 01 Starting Time (sec) Instant Full Light Durability Number of Switching Cycles before premature lamp failure 100000 Ballast Transformer Built in Ambient temperature at which the lamp was designed to maximise its luminous flux °C 25 Environmental lamp mercury content mg 0CE Mark yes Edison Screw (E27)