The Fenix TK17 is a 3600 lumen tactical flashlight engineered to dominate darkness and back it up with genuine field-ready toughness. Its 330-meter beam distance puts serious range in your hand, and the intuitive dual switch design gives instant access to burst and strobe modes exactly when split-second control matters most. Built from A5051-T6 aluminum alloy with tungsten steel striking tips, the TK17 carries an IP68 waterproof rating and is drop-tested to 1 meter, so rugged conditions are simply part of the job. The included ARB-L21-6000B USB-C rechargeable battery doesn't just power the light — it can discharge to other devices, turning the TK17 into a backup power bank in the field when you need it most. A battery level indicator keeps you informed at a glance, and double springs provide strong battery suspension built to absorb recoil when weapon-mounted. Compact, fiercely powerful, and genuinely versatile, the TK17 is the kind of tactical tool you'll wonder how you carried gear without.