The IXON ("IKS-on") IQ Premium Headlights by Busch & Muller
I actually received these a couple of days ago to replace my Big Bang headlights. The Big Bangs are large, bright, and intelligent, meaning they flood the road rather than the oncoming drivers' eyes. Well, good as they are, there has always been a problem with the switches on both lamps.
Well, I received replacements for them in the form of the IQ Premium, an improvement on their successful IQ, upping the lux from 40 to 80, longer run time w/o increased battery drain and an even better beam. For the full explanation lux vs. lumens and for video on how they look on the road:
http://www.youtube.com/watch?v=WwM7vDvvGhU So far, they seem to be a home run of an internal battery, (4 x AA), LED lamp.