The newest addition to the ProTac series is a perfect everyday carry light. This dual fuel ultra-compact flashlight accepts a single lithium or alkaline battery, providing you with ultimate flexibility in the field to ensure you always have a power source option available. Features TEN-TAPA(R) Programming - Choose from three user selectable programs: Features TEN-TAPA(R) Programming - Choose from three user selectable programs: 1.) high/strobe/low; 2.) high only; ZA3.) low/high Accepts a single lithium or alkaline battery CR123A lithium battery output: High for bright light:?350 lumens; 6,400 candela; 160m beam; runs 1.5 hours - Low for longer run time: 40 lumens; 720 candela; 53m beam; runs 14.hours - Strobe for signaling or disorienting: runs 3 hours AA?alkaline/lithium battery output: High: 150 lumens; 2,750 candela; 105m beam; runs 1 hour 20 minutes (alkaline); runs 4.25 hours (lithium) - Low: 40 lumens; 720 candela; 53m beam; runs 7.5 hours (alkaline); runs 14 hours (lithium) - Strobe for signaling or disorienting: runs 3.5 hours (alkaline); runs 8 hours (lithium) Solid State power regulation provides maximum light output throughout battery life Includes nylon holster, one CR123A lithium battery and one "AA" alkaline battery (also accepts one "AA" lithium battery) Durable, anodized aluminum construction with impact-resistant tempered glass lens IPX7 waterproof to 1 meter for 30 minutes; 2 meter impact resistance tested Rubber push-button tail switch Unbreakable pocket clip Anti-roll head 4.25" (10.8 cm); 2.5 oz (71g) with CR123 battery; 2.8 oz (79g) with AA alkaline battery; 2.4 oz (68g) with AA lithium battery Limited lifetime warranty RoHS compliant