You're not going to find a better rear light for the price! This is my second of these lights, highly recommended. Bought my first one 5yrs ago, and it was working great until I lost it after hitting a pothole on the road a couple months ago :( I think this may have been due to a partially worn-out clip on the seatpost mount. The seatpost mount and the small piece of rubber that covers the micro-usb port (snapped off after a couple years) are the only weak points I've noticed, so just be aware of those - I'm trying to be extra careful with those parts on my new light now. The light itself is great, though - love the usb re-charging and the 6 different settings, especially the 3 flashing ones - great for riding day and night.