Ever see what happens to a black dog when the sun goes down? ::POOF!:: They dissapear in the dark! I saw the Nite Ize SpotLit LED at the check out counter while shopping for my boy (a black/mahagony Rottweiler). I was skeptical at first. All I can say is ... Give the guy who developed this item a medal! It works great!!! It's exactly what we needed!!! Came to the website to check out what other items Nite Ize carries! Thank you Nite Ize!!!