The ATAC A2 Tactical Flashlight flawlessly combines a high-performance, feature-packed flashlight with a low-cost power source. Powered by 2 AA batteries the ATACA2 Tactical Flashlight throws a brilliant 162 ANSI FL1 Lumens of light in a smooth tactical beam pattern. Offers 1.75 hours of runtime on the high setting and 75 hours of runtime on the low setting. Tactical Intelligent switch silently cycles through all 3 light modes (High/Low/Strobe) using only the momentary-on function to prevent a "click" sound from giving away your location. Break-Away lanyard is designed to free your arm from the flashlight in the event of an emergency.