The Fenix TK21R Duty Flashlight is a powerful tactical tool built for professionals who need reliable, high-output illumination in critical situations. With an impressive 3600-lumen max output and a 480-meter beam distance, this light cuts through darkness with precision. It features a Luminus SFT90 LED and Fenix’s patented APF (Advanced Pulse-frequency Transmission System) for unmatched beam consistency and performance. Designed for tactical efficiency, the TK21R includes an intuitive dual tail switch for seamless control of Instant Burst and Instant Strobe modes, ideal for momentary blinding or signaling in high-stakes environments. The hidden USB-C charging port and 1.5-hour fast-charging capability keep you ready for anything, while the battery level indicator ensures you’re never caught off guard. Crafted for duty use, the flashlight boasts rugged IP68 waterproofing and 1.5-meter drop resistance. Intelligent overheat protection preserves internal components during extended use, and the included 6000mAh 21700 rechargeable battery ensures lasting performance on the job. From tactical operations to night patrols, the Fenix TK21R is a high-output duty flashlight that professionals can count on. Available now at Fenix-Store.com, your trusted source for genuine Fenix gear. Outputs Burst: 3000 Lumens, 2.5 hours, 1575 feet High: 1000 Lumens, 3.5 hours, 853 feet Med: 350 Lumens, 7.5 hours, 492 feet Low: 30 Lumens, 72.5 hours, 148 feet Strobe: 3000 Lumens Details 480-meter beam distance Up to 72.5 hour runtime Dual tail switch Fast-charging via hidden USB Type-C charging port Instant burst Instant strobe Luminus SFT90 LED Great for duty patrols, outdoor searching, traffic checks, or self-defense Battery level indicator IP68-rated waterproof, including inner-waterproofing on the charging port Included 6000mAh 21700 battery Patented APF system Intelligent overheat protection Tough and reliable aluminum body Batteries Included: Fenix ARB-L21-6000 rechargeable 6000mAh 21700 battery Compatible: Any Fenix 21700 or 18650 battery if using the ALF-18 battery adapter Size Length: 6.04 inches Head Diameter: 1.42 inches Body Diameter: 1 inch Weight: 7.81 ounces (including battery)