2 7/8" overall. Color cylindrical housing. LED lighting source is viewable from 360°. High impact resistant design. 7 programmable modes: Equal Flash, Beacon Strobe, Slow Strobe, SOS, Throb, 100% constant on and 25% constant on. Waterproof to 11,500ft. Push button cap is splashproof only. Working temperature: 14°F to 176°F. Depending on mode selection, battery life could last from 30-80 hours. Uses one 23A battery (included). Includes split ring. Hang packaged.
