"The XT DF flashlight by Armament Systems and Procedures (ASP) offers an intense, 600 lumens of primary illumination, with a secondary light level that’s user-programmable at 15, 60, or 150 lumens, or strobe. It’s powered by an included 18650 rechargeable battery, and ASP’s Dual Fuel technology allows it to be swapped out for two CR123A primary (single use) cells—available separately—when recharging isn’t possible or convenient."
