The niterider sentinel tailight fires a powerful 2 watt led light and is ideal for commuters and road cyclists alike featuring the brand new safety feature of laser lanes this usb rechargeable niterider rear light projects ultra bright laser lines on to the ground giving you your own virtual lane providing you further safety from drivers and other cyclists at only 73g in weight the niterider sentinel tailight wonrsquot weigh you down and the light settings can be customised to suit the le