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Review: Klarus XT11 Upgrade Version - FlashlightGuide
The Klarus XT11 is a compact tactically oriented flashlight notable for its cleverly designed two-button tailcap which is used for activation and mode switching. Designed for hunting, military, or self-defense use, the XT11 produces three output levels as well as a flashing strobe mode and can be powered by a single 18650 lithium-ion rechargeable battery or two 123A lithium primary cells.