The Streamlight ProTac 2.0 is a high-performance handheld tactical flashlight built for durability, convenience, and versatility. It generates a brilliant 2,000-lumen beam with a 262-meter reach thanks to its enhanced C4® LED and TIR reflector. Powered by a rechargeable SL-B50 USB-C lithium-ion battery, it eliminates disposable batteries & offers runtime of 2.5 hours on high, 4.5 hours on medium (570 lm), and 25 hours on low (100 lm), with a strobe function running for about 4.5 hours. The TEN-TAP programmable tail switch allows users to select one of three mode groups high/strobe/low, high only, or low/medium/high for tailored usability. Constructed from 6000-series machined aluminum with MIL-spec Type II anodizing, it features gasket-sealed glass, an anti-roll head, and carries IP67 (1-meter waterproof, dust-tight) & 2-meter impact resistance ratings. At 6.1 inches long & weighing 8.25 ounces (with battery), it includes a pocket clip, USB-C cable, and nylon holster. Streamlight backs the light with a limited lifetime warranty