In the morning on the way to work, they now come every day to use. And now the second winter. Still exchanged no batteries !! Super. Two settings for continuous light and flashing light. I am concerned primarily about the flashing light that I also see the motorist, if I have to drive on the road sometimes. For a lot of light to properly recognize the way, they not rich, but I do not need. Small and unobtrusive to fix the bike. I mean right now but secured with cable ties because the Velcro does not hold in the long run and no flexible sizes for fixing are possible. Is more difficult to find the front of the handlebar still okay, but the back of the saddle or any other point, because the stakes are too small. Therefore, using cable ties, the lamps I suppose eh not the bike.