Andre i think we are all conditioned to buying the very best there is when really we dont really need it.
Sticking to the Luxos, in addition to the problems with the hotspot I've covered, the light isn't waterproof in common use. What use is a bicycle lamp that you have to keep under covers when two drops of rain fall? The thing is poorly designed.
There are also reports of the electronics that switch the beams going gaga. That's a danger to your life.
On top of all this (enough already to give me a cramp in the cheque-writing finger) there is the apparently non-replaceable battery the life of which, given the likely partial charge/discharge pattern, won't be three years.
So what you have here is a badly designed, disposable lamp -- for a huge price. It simply isn't "the very best there is". Not by many miles.
When I pay for German engineering, I expect to receive German engineering, not a lamp designed and made in Bongo-Bongo.
Opinions may differ, but mine is logical, rational and defensible point by point. What's more, these are disabilities with a history in the BUMM line, of which BUMM has been made aware time and again; at this length of time, we must conclude that BUMM has no interest in fixing these disabling shortcomings on the Luxos, as their cheap makeshift of changing the instruction sheet to tell customers to angle the switch differently indicates. Ugh!
BUMM's hangers-on and fan-boys react savagely to the least criticism. But I'm not impressionable at all, totally immune to the image BUMM wants to project when the reality isn't there. Advice here from Dan and me to Jags to wait until we knew more about the Luxos now seems prescient.
You can buy many better lamps, and they cost less.