Its a very Nice light I was very impressed with the shock sensor that will automatically turn the light on once it feels the tire start to move and the light will shut off about a few seconds of not feeling any movement. The led lights are very bright ans the patterns that it makes as you wheel turns are really beautiful it's definetely a awesome light show the only reason i gave this light a 3 star is because of the cover that holds the batteries does not securely snap shut it will close and hold but once you hit a bump or two it pops open and the batteries fly out. The way I fixes it was to put a rubber band around it and it holds it shut so other than that its a very good light.