Did the Night Breaker unlimited tested, since I (90% more light output +) was satisfied with the predecessor model. Equipped to the headlights of his car with the previous model and this version is the same difference (especially in bright areas) DTL. to recognize. The light is just "white" and visible light. So much for the positive impressions ... What has shocked me though is the yet to be designated as an extremely short life of these halogen bulbs. Have now bought 3 sets of this make (one of them here at Amazon) and went back to the remnants of my "old" Night Breaker !!! The first set of bulbs held exactly 3 months (mixed driving, about 5500 kilometers of driving power, 2/3 motorway). The two lamps this sentence acknowledged at a distance of 5 days in service. Since I was initially pleased with the higher light output, the 2nd sentence lamp was purchased. However, the second lamp set could not hold a candle to the first in terms of service life. After exactly 30 days the first lamp broke, 3 days later, the 2nd light of this sentence. Then I suspected that my car something was wrong and tolls. Transients from the alternator or other problems of the on-board electronics have a negative impact on the life of these lamps. So first himself and then have it checked by a car mechanic the car ... no broken alternator, no feedback from a faulty ignition system, no broken capacitors in the output stage of the amplifier, .... nothing that allowed conclusions about these high lamp wear , Unfortunately, the story is not quite over. The inglorious final chapter then wrote the 3rd lamp set that I (actually against better knowledge) still installed. As I have done in this sentence diary about the "light on" hours of riding, I know that the record held exactly 36 hours. After 4 long night rides "adopted" (each almost exactly 9 hours operating time), the two bulbs at a distance of less than half an hour. Had I been forewarned not due to my previous experiences, I would have been in the middle of the night on the highway and had no light. So I was allowed only in the dark on the highway standing my "old" Night Breaker reinstall. After a lot of money and trouble sacked am I even with these then stayed (holding already almost back half a year). Unfortunately, these are apparently only very hard to get. Pay when all "old bulbs" are broken, have recourse to a model with a higher luminous efficacy of Philips and try my luck there.