The topeak iglow cage with bottle is an ideal gift or addition to your bike if you are finding yourself commuting to and from work in the darker hours of the day this shouldnt be used as your main light obviously but working alongside a good set of lights this acts as a great side light if you use alongside a front and rear light you have exceptional 360 degree lighting coverage the bright rgb led gives you the choice of 5 colours matching with any bikes aesthetics with ease the bottle