[1 of 1 customers found this review helpful]
I've waited a long time for something like this. Walking the dog in the winter months when it's dark after work, I always worry about being seen by drivers. These are very bright, send light in 4 directions and the batteries seem to last well. They can be attached to a collar with the keychain-style ring, or clipped on with the clip built into the back of the light. Can be used for people too, as a zipper pull or attached to pocket, etc. Also check out the Night Ize LED light (long, thin shape); those are great too. Buy multiples to have both person and dog seen from front and back.