Adequate lighting has never been one of BMW's strong points, even on the K1600 with it's adaptive lighting, which was a big reason I bought a K1600 in the first place. The adaptive headlight, while it may adapt to keep the light where it needs to be, is simply not bright enough, and I have to use my brights to really see properly. What bulb is in there and can it be replaced with something brighter? If that's not possible, what would be a good choice for some lights to replace the lower ones that come on the bike? They seem to do a good job of lighting around the bike, but don't help much lighting much further.