When every lumen counts, the Klarus XT21X Pro Flashlight delivers unmatched brightness, durability, and control in one rugged tactical package. Pushing a blistering 4400 lumens with a 336 m beam throw, it’s engineered for serious operators, first responders, and anyone needing maximum light with minimal delay. Features • Max output: 4400 lumens with 336 m beam distance • 7 lighting modes: Turbo, High, Medium, Low, Moonlight, Strobe, and SOS • Long runtimes: Up to 200 hours on Moonlight mode • Dual-switch control: Patented rear and side switch with lockout for mission-specific access • USB-C rechargeable: Fast 2A charging with 5000mAh Li-ion battery • AI thermal control: Intelligent Temperature System (ITS) auto-adjusts brightness to prevent overheating • Robust body: CNC-machined aerospace aluminium with mil-spec HAIII anodizing • Waterproof & impact-resistant: IPX8 rated and drop tested to 1 m Battery compatibility: 1 × 21700 or 1 × 18650 (with adapter) Battery capacity: 5000mAh Material: Aerospace-grade aluminium alloy Finish: Mil-spec HAIII hard anodized Water resistance: IPX8 Impact resistance: 1 m Dimensions: 177.8 × 94 × 63.5 mm (7 × 3.7 × 2.5 in) Weight: 171.5 g (6.05 oz) Lighting the path isn’t enough—this is tactical illumination at full power. When the dark doesn’t wait, neither should you.