Did that my 3-burner hallway lamp converted and am extremely satisfied! After my previous energy-saving lamps is always after a few months barely functioned and needed after switching perceived eternities until they shone normal, the conversion is absolutely refreshing! Immediately after turning bright light of a pleasant light color, light output as normal and evenly all around and also significantly lighter than before with the Energiesparfunzeln. Over the long-term durability can be naturally after almost 3 months still nothing final say (with regard especially to the less satisfied reviewers), but from my previous term, a clear buy recommendation!