アンソン 2 The safety failed after a few days. The helmet itself seems to be ok. The shape is more round than oval, so if your head is more round it may fit you well. My head is more oval so it doesn’t fit me well.The light is part of the size adjustment knob. I didn’t like that but the adjustment works fine.The light itself stopped working. It will turn on for a while and then randomly stop working. I hate to press the button again to make it work. However when I’m riding I don’t know if it when the light is on. That’s not good. Do not rely on this to be your only rear light. It’s not very bright anyway, so it’s probably not that helpful.Next time I will buy a helmet without a light since this one doesn’t work well and I don’t like how it is part of the adjustment mechanism.