For the price, this is a very bright light. Rechargeable is key. I typically put it on the lower setting for daytime riding and it's plenty bright.
My aero seat post is too narrow for the light though. So the light would rotate left or right when I hit a bump and I would have to adjust it.
I tried cutting a piece of PVC as an adapter which helped some, but still rotated some.
I ended up getting an adapter made by Giant for a few bucks that works well. I'm not sure if the Light and Motion adapter works or not.
I ride to work every day in the PNW, so it is dark in the winter. This was a great light for my commute, lightweight, bright, charges quickly. However, it just stopped working after 3 months. It did not cost very much ,so I guess one season light for the price was not that bad.
