Combining high power with a large capacity battery this is the perfect accompaniment for the more adventurous rider who could be away from power for a long time, or you may just want to be the brightest. Features: DayBright flash pattern and side illumination for 360 ?visibility makes this an attractive package. Optimized Mode Selector provides multiple programs for choice of run times and modes so you can find the right one for your ride 6-48 hour run time Specs: Lumens Rear80 Weight77g