Io USB Tail Light

As a bike light I'm sure it's really good. The brightness is there along with the 3 different modes. However, as a clip on light, I can't recommend it. For one thing, it seems very bulky and large. Second, the clip on the light doesn't work well. I tried clipping it to the front of my dog's harness and it wouldn't stay in place (it would like to the side) and eventually fell off. I then placed it in a more secure section of the harness on the side. This lasted for a while until it unknowingly fell off and got ran over by a vehicle. In summary, it's a bright light and lasts a long time between charges. However, for a clip on light, I would recommend some changes.