EagleTac T20C2 MKII XM-L2 LED Flashlight Lumen Output:LED lumen:850/126/12, ANSI FL-1 lumen: 681/101/10 Runtime:1.2hrs/10hrs/100hrs Battery Type:2*CR123A;1*18650 XM-L2 U2 LED;128g, IPX-8 Waterproof