Self levelling bulbs??
"Possible confusion you are suffering"
as Yoda might say...
Self levelling headlamp on a relatively recent car maybe, but not on a Falco, no Sir, not on a Falco, and it's not the bulb that does the levelling..
HIDs were always a bit iffy, although every bike I've fitted them to passed the MOT without problem. I did have an issue on my F800GS though with the HID capsule producing so much UV light that it 'burned' the reflector - well, that's what the masses said, but it was actually a degradation of the reflector that allowed the black of the plastic moulding to show through. I did also hear that Swiss Police had a habit of pulling bikes and ticketing the rider if it had non-factory lights fitted...
I've fitted HIDs to a few bikes but have left the main beam as a standard bulb because the HIDs take so long to 'warm' up.
The only minor problem I had was that they produced so much light that any dark spots were highlighted, but they were all due to a combination of poor reflector design and the fact that the HID capsule's 'filament' is not quite in the same place as the incandescent filament would be .
I put on one the GSXR's dip beam and it was fantastic - so good that I rarely needed to use main beam, but then the bike had a swanky projector unit for dip but a conventional reflector for main.
The kit I got has only got two LED bulbs, so I think what I'll do is put a 55w HID onto the dip beam and the two LEDs on the main.
It'll be interesting to see how they work though, as they are single 'filament' H7s they shouldn't suffer from the same problem I had with a twin 'filament' H4 LEDs I put in my FJR - the placement of the LED chips on the bulb body made the differential between high and low far too big, so much so that I needed to adjust the headlamps separately with one ideally levelled for dip and the other for main ...
That's pretty much the sum total of my headlight knowledge base - in a nutshell!
You don't get a warm-up lap for life...
).