This is already the second pair Bosch Xenon Silver and I am still completely satisfied. The first pair I bought in October 2010, because I was not satisfied with the original light bulbs Golf VI at that time. The original lamps at the factory were too weak, did not have good illumination and were also very yellowish. The Xenon Silver, however, are very bright, have a great light, and a great light color, and light up the road also a lot better than it did the original lamps of VW. Another important reason that I install these bulbs again is that reht long operating time. As described, I have the first pair installed 10/2010 - and this pair has actually until last week (03/2015) is working properly. In my opinion, these bulbs provide therefore the best compromise between light and strong light sources and a long life is. Strong buy recommendation on my part (at least for the Golf VI).