E27 7 w matt led bulb with a traditional light bulb shape warm white the very efficient filament led technology enables this led bulb to achieve the highest energy efficiency class a and thus to achieve enormous energy savings of up to 90 compared to conventional traditional light bulbs this led bulb can be used as an energy efficient and long lasting lifetime of up to 15 000 hours alternative to conventional traditional light bulbs in all lights up to 60 w the 2 600 k warm