Hey thanks. Had a quick look. Cannot seem to find the actual bulb specification . This was the only link I think: http://www.realoem.com/bmw/showparts.do?model=LM12&mospid=52067&btnr=63_1152&hg=63&fg=05&hl=6
I looked again on real OEM (what an excellent site ) at a 35is but a few months older than mine. For some reason there were incomplete listings for the most recent 2013 models. Looks like definitely a D1S bulb for dipped beams.
The OEM D1S bulbs are quite yellow (4150K) and for me don't sit right in the crisp white halos unless it suits ones personal taste. I'm looking to get 6000K, less bright but hey, if you're a victim of vanity then you will understand where I'm coming from
MTEC do these bulbs. Anyone have experience of this company?