the mounting bracket isn't the best, but the light is great. very good brightness and visibility.
Does what it says....the daylight factor is awesome...I Especially bought this light for daylight visibility
Day time visibility is also good
The only thing I dislike about this light is that there is no low power flash setting that has at least one light on. Having at least one light on improves the ability for drivers behind you to accurately gauge the distance to you. I'm glad that such a mode does exist; it's just too bright. A low intensity version of that mode would've been really good to have. Daytime flash is great and offers confidence during the day. Wide cone of visibility, more than 180 degrees side to side. I've a round post and the mounting is very secure.
It's only been a few weeks. I'll update the review after a few charging cycles.