Unfortunately, the search proved not really easy. On the Internet there are few (usually older than three years) informed reviews from the automotive press, and it has done a lot of product default. The price range of 29.90 euros on the large auction platform for two burner D1S to 373.10 euros for two original BMW D1S burner is, in my opinion, really hard.
Then there is the really important question of all: "?!? Cool looks or good illumination"
Even BMW has now jumped on the train and sells two types of bulbs. The line is called Blue Lamps and other power Lamps ... Osram has also here the Cool Blue Intense as an alternative.
So I drive about 30,000 kilometers a year together and usually in the early morning and late evening. Especially in the dark winter months my focus is on the best possible illumination of the road and the side areas. The fact that we live in a rural area with a lot of forest, meadow and wild, is not to be despised.
But now to the OSRAM Night Breaker Unlimited D1S burner. Installation we leave aside, either you know it and trust you ran himself or you have to the nearest workshop. After installation and the first functional test pass about five hours until the final color temperature reached. This is included with this torch at 4350 Kelvin, that corresponds to a white with a very slight yellow tinge. I now have about 150 to 200 operating hours behind me. Now I would not go so far out on a limb and say that the promised 70% more light be achieved, but definitely the illumination is extremely good and very pleasant to my mind for the eyes. Especially in the rain and darkness one can see the difference between blue and white light very well. The effort is much lower in white light. The price of about 150 euros for two burners is appropriate when you consider that BMW more than double for his burner requires no installation. From the cheap version for 30 euros for two burners, I think ... Well let's put it this way: a distance I think about it! Here I've read of people in forums that they have destroyed the control unit for xenon burner, then it is again really expensive ... 323.31 Euro demands BMW for the control device also without installation.
Long story short, who sets great store by good lighting and related security should resort to these burners. If you like cool looks ... has probably already stopped reading and will turn towards Cool Blue Intense ...
+ Very good illumination
+ Much better luminosity with rain in the dark as a blue light
+ Lighter side portion of the light cone
+ Pleasant color temperature, little tiring
+ Acceptable price