28 LED PB Power Array tail light PB Power Array and built-in parabolic reflector provide visibility for up to 1 mile Steady, Superflash, and Courtesy flash modes Ultra compact case is weatherproof, lightweight, and durable Rear rack and seat post mounts included Up to 150 hours of run time on 2x AAA batteries (included) 85g 3 Rear Rack/Post 13UPC/EAN/GTIN: 642016302008