Bright light. I like the brake sensor feature. I wish the mount was a bit wider and had an angle adjustment, this would make for more mounting locations. Couldn't really use on luggage racks of my e-bikes but will work fine on my road bike(s).
I wanted a light that would be seen by motorists (if they're paying ANY attention to their driving). This is a very bright light. I have received comments from other cyclists who have approached me from behind, commenting as such. Battery life is solid for commuting (<3 hrs), and seems okay up to 6 hours.