Bookman is the Swedish brand dedicated to urban visibility. With her many international design prizes, she has designed this rear light block light for a really practical and compact bike. Its well -thought -out elastic catch system and its lens which perfectly diffuses the light make it an essential accessory to all the versers who are looking for secure and design lighting. Rechargeable by USB, with 4 operating modes, it has an autonomy up to 25 hours and is perfectly waterproof. ### Details * 4 operating modes: Fixed 100%, flashing 100%, fixes 25%, flashing 25% * Autonomy up to 25 hours depending on the mode * Power up to 18 lumens depending on the mode * Very simple fixation thanks to its elastic strap * USB recharge (cable supplied) * Perfect seal (IP-44) * Its elastic system adapts to a wide variety of tubes and supports