Guardian Expedition Yellow Waterproof Safety Emergency Light

I use this for my dogs in winter when it gets dark early. I think the white ones are the best for visibility and I love the way they clip on securely and come off easily. I have had no problems when they get wet and the batteries seem to have a good long life.

We live on 20 acres and the dogs love to run around and explore. Unfortunately with the sun setting earlier in the day during the winter, they are often out at dark. This light clips on to his collar and is very secure. Every time I go to let them out I just have to give it a twist and it starts flashing. I can easily see them up to a 500 feet away even through the trees.Im confident that our neightbors wont have issue seeing them while driving and they wont be mistaken for any coyotes :)

Too easily dislodged (and lost) for use on a dog collar or vest...