The all-purpose PolyTac is designed for the broadest range of lighting applications at the best value. It features a superior grip texture for a comfortable but slip-resistant feel, as well as TEN-TAP Programming that gives users the choice of three operating modes. C4 LED technology within a parabolic reflector produces a concentrated beam with optimum peripheral illumination TEN-TAP Programming: Choice of three operating modes: 1.) high/strobe/low (factory default); 2.) high only; 3.) low/medium/high: High for bright light: 600 lumens; 214m beam distance; runs 2.75 hours Medium for longer runtime: 260 lumens, 140m beam, runs 5.5 hours Low for when less light is needed and for longer run times: 35 lumens; 52m beam; runs 34 hours Strobe for disorienting or signaling: runs 5.5 hours Solid State power regulation provides maximum light output throughout battery life Reflector produces a concentrated beam with optimum peripheral illumination ideal for law enforcement backup light; day-to-day industrial use; maintaining vehicles; general contracting work High-impact, super-tough nylon polymer for exceptional durability and a superior grip texture to provide a comfortable but slip-resistant feel IPX7 rated design; waterproof to 1 meter for 30 minutes Powered by two 3V CR123A lithium batteries (included) 5.34 in. (13.56 cm); 4.2 oz (121 grams) with batteries Limited lifetime warranty Product Specifications High Lumens: 600 Run Time on High: 2.75 hours Run Time on Low: 34.00 hours Beam Distance: 214 meters Battery Type: CR123A Lithium Battery Quantity: 2 Length: 5.22 inches (13.26 centimeters) Weight: 4.10 ounces (116.23 grams)