Unlikely to be BMW specific units. Bosch made halogen lamps to replace sealed beams as an aftermarket option.1990s 3/5 series BMW from a breaker fit do they not? I always assumed that's what mine are labelled "Bosch".
Hella equivalents are also available but the lens isn't as domed as a P6's headlight lenses should be if they are to look right.
Hi. Thanks for the info.The first problem I see is the low beams have city lights (small bulbs in the bottom of the lamp to give a very low level light) that would require quite a bit of work to power. More importantly, it's a hole for moisture to creep in.
My second concern would be the brand of the lamp.
Yours
Vern