The Suprabeam B6r comes with either a 36Wh or 72Wh power pack. The Li-ion power source is enclosed in a solid aluminum housing that protects the battery inside and underlines the high quality of the materials used for this bicycle lamp.
Running time 36 Wh = from 1h 15min to 11h 30min Running time 72 Wh = from 2h 30min to 23h
