“The light needs more than a rubber band to secure it to the seat post. I will ride my bike over rough terrain which is likely to shake the light loose. A screw clamp to the seat post might provide a more secure connection to the seat post.”
“Great light. Fits snugly to my road bike. Two detractors: strap is flimsy, and toggle is hard to locate once on; on/off switch is not pronounced, so hard to actually locate. Comparing it to the Moon Helix Max, which had pronounced on/off button mounted mid-light, and was heaps easier. That said, it’s perfect for my early and late rides, and everything in between.”