LED Lenser M5 Pocket SLT Flashlight 880054 is an incredibly efficient little flashlight with a surprising power output. At slightly over 4 inches long, you wouldn't expect this diminutive LED Lenser flashlight to have nearly so brilliant a beam as it does, but an efficient microprocessor and a High End Power LED combine to throw out 100 lumens of flawless white light every time you switch on the M5 Flashlight. LED Lenser has equipped this flashlight with their potent Basic Smart Light Technology (SLT) system, which allows you switch between Power, 15% Power, and Strobe modes with specially coded button presses. The LED Lenser M5 100 Lumen Flash Light comes complete with a one-touch Rapid Focus system, which allows you to switch from a concentrated, long-range spot beam to a wide area glow simply by sliding forward the flashlight's bezel. Efficiently powered by a single AA battery, the LED flashlight can project a bright white beam 100 meters into the distance for up to four hours. IPX4 waterproof, incredibly efficient, and versatile to boot, the LED Lenser M 5 Smart Light Lamp is the pocket-sized, all-purpose flashlight for all your outdoor needs.