I use it for night caches to Geocaching, but also for non-reflective caches found in thickets and other bushes, trees, etc.
The power of this model 2014/2015 is extra: more than 500 lumens, it is the foot!
Besides everything is configurable with little app to download, this is awesome.
Finally, the longevity of the battery is OK for release a few hours, which is already long in winter.
The weight is well distributed, it must be said that if I run it, my activity makes me tilt your head in all directions!
Finally, note that the string from the top of the skull is optional, personally I do not put.