Bookman is the Swedish brand dedicated to urban visibility. With her numerous international design prices, she has designed a really stylish front light! The curved shape of the Bookman Light curve allows you to see from all angles. Rechargeable by USB, with 5 operating modes, it has an autonomy up to 70 hours and is perfectly waterproof. ### Details * 5 operating modes: Fixed 100%, flashing 100%, fixes 50%, flashing 30%, fixes 30% * Visibility at 180 ° * Autonomy up to 70 hours depending on the mode * Power up to 220 lumens depending on the mode * Very simple fixation thanks to its elastic strap * USB recharge (cable supplied) * Perfect seal (IP-44) * Suitable for diameter tubes 22 to 42 mm