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) 80 Color Quality Color Type Soft Warm Color Temperature in Kelvin (K) 2700 Color Rendering index (Ra) 80 Dimensions Light Bulb Diameter (mm) 60 Light Bulb Weight (g) 100 Base Socket E27 Light Bulb Length (mm) 126 Lifetime Nominal & rated lamp lifetime in hours (h)25000 Lifetime in years (at 27 hours average usage per day) 25 years Lumen Maintenance Factor at the end of nominal life 70 Quickstart Light Quick Start (lm) 04sec 100 Time to reach 60 of light output (sec) Instant Full Light Starting Time (sec) 04 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)