28 LED PB Power Array tail lightPB Power Array and built-in parabolic reflector provide visibility for up to 1 mileSteady, Superflash, and Courtesy flash modesUltra compact case is weatherproof, lightweight, and durableRear rack and seat post mounts includedUp to 150 hours of run time on 2x AAA batteries (included)85g3RearRack/Post13UPC/EAN/GTIN: 642016302008