Utilizing the latest C4 LED technology this ultra compact and lightweight flashlight is optimized for output and run time. Features C4 LED technology, with a 50,000 hour lifetime, unbreakable and scratch resistant polycarbonate lens, Up to 683 candela peak beam intensity, 28 lumens typical, 2.25 hours runtime, one "AAA" alkaline battery, push button tail switch – momentary or constant on operation, a tailcap switch for momentary on/off and an O-ring sealed, shock proof and drop-tested construction. Water resistant per IPX4; in accordance with specification EN 60529:1992. High Strength "Break Away" safety lanyard. Unbreakable pocket clip.