6" overall. Water resistant. Up to 600 lumen output. 2.5 hour runtime per battery set. O-ring sealed. Polymer casing is injection molded over aluminum frame. Features black vinyl grip. Designed to professional law enforcement standards. 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.