The light itself is good - I used it in the early morning while dark and in day rides - it has a good range of brightness. I don't like the mount - it's a two piece mount - meaning you have to keep up with a rubber insert, the rubber band to mount the insert and the light. Every ride I have to take it all apart and put it back on. Kinda of a pain. I already replaced it, and gave it to my daughter :)