I liked the idea and the way it’s made it’s just not bright enough for daytime use. I ride a recumbent handcycle and I was hoping it would be bright enough to keep me safer on the road. It needs to be at least 100 lumens for this to be effectiveI was excited for this simple way to increase my night time visibility. Rode for about 5 minutes before the light head unthreaded and fell off somewhere in the dunes. A few wraps of electrical tape might have stopped it from unthreading. I am not going to drop another $35 and I wont recommend this to my friends.Works good just wish it was the white version of led