I have run one, the same one, for many years. Sturdy. No problems with mount. Company sent me a second mount free of charge so I can move it from bike to bike. Good run time on two double AAs. I like that it has two on / off buttons that can be used to set each row of lights for a different function or pattern. There are probably better, cheaper, brighter lights out there now, but I was happy with it when I bought it more than a few years ago and I am happy with it now.