6" overall. Water resistant. Up to 275 lumen output. 2 hour, 30 minute runtime per battery set. O-ring sealed. Polymer casing is injection molded over aluminum frame. Features black foamed black vinyl grip. Designed to professional law enforcement standards. Leak proof Lithium power cells provide continuous runtime and a ten year shelf life. High output, thermally controlled LED is positioned in a precision parabolic reflecting chamber. The result is a blindingly bright light that provides both a room illuminating halo and a penetrating central beam of incredible brightness. Softouch¬ activation system is sensitive and quiet. It employs circuit board technology and a self-cleaning computer micro-switch. In the center position, the light is locked against accidental activation. Rotated to the left, it provides intermittent and to the right, constant illumination. Requires (2) CR123A batteries (included). Hang packaged.