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 Output: CR123 Battery: High - 350 lumens, 160 m beam distance / Low - 40 lumens, 53 m beam distance AA Alkaline or AA Lithium Battery: High - 150 lumens, 105 m beam distance / Low - 40 lumens, 53 m beam distance Runtime: CR123 Battery: High - 15 hrs / Low - 14 hrs / Strobe - 35 hrs AA Alkaline: High - 1 hr 20 min / Low - 75 hrs / Strobe - 35 hrs AA Lithium: High - 425 hrs / Low - 14 hrs / Strobe - 8 hrs IPX7 rated design; waterproof up to 1 meter for 30 minutes 2 meter impact resistance tested