The Streamlight Stinger DS LED HL Rechargeable Flashlight is compact and emits powerful illumination with up to 640 lumens. Dual-switch technology allows you to access three lighting modes and strobe with the tail cap or head-mounted switch. Strobe mode can be used to disorient a suspect or signal your location. This Stinger light is constructed of machined aircraft aluminum and meets FL1 standards for water and impact resistance. A deep-dish parabolic reflector produces a concentrated beam with optimum peripheral illumination.