LED Lenser’s T7 flashlight features Dynamic Switch technology – a system that allows you to move between settings with a simple tap instead of having to do full clicks. Switch between full power, low power and boost within milliseconds. Super-charge your basic setting with the extremely bright boost mode for quick defense or spotlight viewing. Lightweight, at less than 7 oz., this is a great flashlight when you’re talking weight-to-output ratios. Near to far focusing options with the Advanced Focus System are possible because of a patented combination of a reflector and lens to create a light system that provides both a focused beam for long-distance needs and a spill beam for up-close reading. Rapid Focus™ technology allows you to go from reading to searching by simply moving a sliding bezel with your thumb. Puts out 27 lumens for up to 13 hours on high power; 175 lumens for up to one hour on high. Four AAA batteries (included) power the single LED. Length: 5.37". Weight: 6.98 oz.