The lamp moves from the front of the handlebar and is to be fixed there by a screw by hand. Lamp is turned on at the rear end and has not expected me luminosity, which surpasses all previous.
Conclusion:
+ Very high luminosity
+ Focus by turning the reflector (magnifying glass)
+ Circular light ring on the front edge for lateral visibility
+ Top processing
+ Good to very good price / performance ratio (considering that cheaper bulbs also cost 20-30 euros)
+ Continuous light; Stroposkoplicht, flashing light
+ Lamp is also very good as a flashlight
- Padding the handlebar holder thickish, but no clear downside
full purchase recommendation !!!