I bought these bulbs half a year ago and go during the day hardly light, unless it is bad weather ... Directly after installation, I was overwhelmed by the brightness, illumination and color temperature (significantly whiter than standard bulbs) the light bulbs, but I had a few weeks to feel that the light in many areas on the street was dark. Then I removed the light bulbs and realized with horror that on the inside of the glass a black and silver fog had set and the luminosity reduced enormously. In addition, the coating has started to peel off the top ... At first I thought that I had bad luck with the couple and ordered a new; again the same problem (even after only a few weeks). This problem has also been confirmed to me by two friends who had bought these lamps also. I have it now complains directly from Bosch and wait for their opinion.
I can not say anything because I have the lamps replaced prematurely because of the constantly deteriorating brightness over the lifetime.
Due to the rapidly decreasing luminosity and resulting poor illumination of the road only 1 star. Schade, Bosch I'm not used to such poor quality.
