Had not taken into consideration when buying that the handlebar ring is fitted with a lever mechanism and not by Schrabenzieher. A thief could throw the switch and quickly steal the mounting ring. I now leave the lamp incl. Mounting ring in a backpack or saddlebag. The ring is also suitable for my relatively thick handlebar. The actual lamp is small and light and well stowed. As with most bicycle lamps that annoying view mechanism is available again - you have to press twice for continuous light. The switch for the light is relatively well and will probably accidentally triggered only in unfavorable circumstances in the case and therefore the case of empty batteries by poorly installed Einschaltknöpfe is probably to be feared rather less.
