Have the bulbs now time tested one week. I did not think it, but this is really a worthy replacement for the standard bulb. However 4.5W LED are really just old light bulb 35W, which means that you can not use this power LED to completely bright room lighting. For me it was the Lamp application on the sofa and in the hall (there felt my girlfriend when gemüdlich and livable :-)) Very interesting look Not Dimmable !!! Recommended product