I have it, and love it on my Kaly. The accelerometer isn’t 100% accuruate, sometimes it jsut turns on when riding over a speedbump, but I haven’t had any problems with it so far. Completely made out of metal, had it dangling against a motor by accident on a ride, and it just got a couple of scratches. Probably the light that has lasted the longest for me so far. 10/10 for the money.