I bought this headlamp to be able to go in the dark season decently with my dog for a walk now. At first I thought "that never stops but", but she keeps. And the really good. And the radius of which is illuminated is also really sufficient. The angle in which the emitter is lit can be adjusted. At last you can concentrate on the dog and not have to handle even with a flashlight next to leash and dog waste bags. :)