The small and versatile fwe rechargeable usb rear light was part of our most popular light set last year offering a compact shape with a surprising amount of power output for their size this light will ensure you are seen on the darkest of nights and with a simple usb recharge you will never run out of batteries again supplied with a quick release quarter turn mount for handle bar and seat post alongside a velcro strap for helmet mounting the light also has a clip on the rear for attaching