Hi Saabgemeinde, after having slight problems with my xenon light from the 9-5 Aero, BJ 02/2005 (detailed report: http://www.motor-talk.de/…/…9-5-and-his-leiden-t2451932.html?…), they have now changed the cable part from the control unit to the burner and the burner itself at my instruction. I don’t know if the lightning is fixed during the ride (the control unit is still left as a possibility), but what I know is that the temperate old burner Osram Xenarc 66043, Klevin ? new burner PhilipsXenon standard 85410C1, Kelvin ? I don’t find anywhere how much Kelvin the new Philips has. I think about 3000. The old Osram I think has 4150 and was so far ok. The change of temperature over longer operating life should hardly be noticeable with the new burners. That is, I drive around with two different “colors” and that’s annoying. I have a lot of fun. e hears that the replacement burners are generally yellower in contrast to the first ones due to legal changes, but there should also be burners with 5000 – 6000, which are approved. Do you know good D1S burners in the blue – white area for favorable prices from reliable sources ??? Thank you for your tips ! Greetings Heiko