The moon aerolite helmet light is a great light if you are finding yourself riding on the roads in the darker hours of the day with one cree xp e2 bright led the light has a focused optical output and when attached to your helmet provides the most direct source of light charge at home or at work using the charging cable provided mini usb this is ideal as most rechargeable electronics will use the mini usb so if you forget your cable one day youll never be within a few metres of one or some