With built-in E-approved reflectors and wide-angle optics, the SL621 ensures optimum visibility in traffic. The wide-angle optics cast the light at 180 degrees for maximum spread and even better visibility in traffic from all angles. The bike light is distinguished by its sleek and minimalist design.
The SL621 rear light is mounted on the luggage rack with two bolts (included) that can accommodate luggage racks provided with holes located 50-80 mm apart (see picture). and the light is connected to a dynamo on the seat stay. The cable between the bike light and the dynamo can easily be rolled to the right length. The bike light produces its own environmentally friendly induction power by means of a coil in the bike light and magnets on the bicycle spokes – completely without the use of batteries.
The bike light is permanently mounted, so you always have it with you. The light is always on whenever you cycle, which makes you extra safe in traffic, day and night. Magnet-powered bike lights mean no more dead batteries, no forgotten bike lights, no friction when you cycle – just lights which are always on.
Light mode: Flash with PowerBackUp.
PowerBackUp will keep the light on for a few minutes after the bicycle stops. This will make sure you won't be left in the dark if you have to stop at, for example, a red light.
The SL621 rear light can be combined with front lights from the SL500 and SL600 series.