Spanninga Arco rear light which has a very powerful LED lamp with an impressive light output of 30 lumens. This makes you visible up to 500 meters. The rear light has a handy o-ring bracket so that you can easily and quickly attach it to your seat or rear rack. The Spanninga Arco rear light is equipped with a rechargeable battery so you can charge by the supplied USB cable. With this rear light you are assured that you can see well in the dark and are also visible.