Lights are a necessity now. The Stix lights are excellent and easy to use. For the last year I have used both a taillight and headlight on my bike while riding regardless of the time of day. They are easy to install, remove, and charge. I charge my lights every 2-3 rides to make sure they are always ready to go. I have never had a light bounce off and they even stay on my bike while on the highway at 75 mph. Great product, minimal care necessary, bright. I have never had an issue with battery life, even on 6+ hour rides. I do stay on top of keeping my lights charged just like my other riding electronics (Garmin, sensors, etc). I have used the same mount that came in the box, with no issue to report yet. My light is on a gravel/cross bike so it has seen lots of dirt, mud, singletrack, and water; all without skipping a beat or ever falling off. I've been happy with it.