The Streamlight Stylus LED Penlight in black is an ultra-slim, high-intensity flashlight designed for tactical use and covert operations, delivering a reliable waterproof LED penlight with a powerful white LED boasting a 100,000-hour lifespan and a light output of 10 lumens for tasks where preserving night vision matters. Crafted from durable machined aluminum, it features a non-slip knurled grip and an anodized finish, with a compact 6.21-inch length, 0.375-inch diameter, and a light 1.1-ounce weight that makes it easy to carry in a pocket or attach to gear via its convenient pocket clip. The Stylus provides both a momentary blink switch and a constant-on option, enhancing versatility for everyday tasks or tactical scenarios, and arrives with a glare guard protector for optimal performance in variable conditions. UL classified for safety standards and backed by a limited lifetime warranty, this waterproof penlight is available in multiple colors and is ideal for night-vision-friendly illumination, covert operations, or as a dependable Streamlight Stylus LED Black option for professionals and outdoor enthusiasts alike.