Fenix FD41: 900lm Focusable Flashlight (Fenix is Back On The Menu) - Preparedmind101 - YouTube
Review: Fenix FD41: focusable, 1x 18650, XP-L HI V3, 900 lumens; (beams)hots, compare | Candle Power Flashlight Forum
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Fenix FD41 focusing ring : overview and first thoughts | Candle Power Flashlight Forum