All in all a very good light. The brightness is very good. There is a Dauerleucht- and a flash function.
What you should consider when buying is that the lamp has no large light radius. This means that the light is focused very selectively. For this reason, the lamp is more suitable for the city, where it is more important to be seen by other road users. As previous speakers have already mentioned it here: for a forest that's nothing. I also doubt that they bring something in places where there are not enough street lighting.
I am satisfied, because I needed a lamp to be seen. This purpose it fulfills perfectly. In my opinion, exclusively for use in the (large) city.
Had the Leuchtraduis bigger, they would have gotten from me five stars. Since this is not the case, I give good four stars because otherwise really everything.