It really is a true eye-opener, even at a relatively leisurely Gesschwindigkeit of around 12 km / h is the full light available. The advertised headlight range of + 50m (blinding hazard Contrary Kommer, I have adjusted to around 25m) interest me, as "Normal cyclists" not so much. It is important even at normal speed is a really good, broad and - in particular - clearly illuminated area of the track in front of me. With halogen lamps I always had only a "Spot", and the hole I had to then remember ... now that's history. The automatic function is excellent, it seems to work in the field of natural light, so even with artificial light underpasses or similar turn on the lamp. With a power consumption of less than 3 watts of (theoretically) increased effort not noticeable. All in all, this lamp is its monetary value!