The Streamlight Stylus Pro USB Rechargeable Pen Light delivers professional-grade illumination in a compact, pocketable design, featuring 350 lumens on high with a 109-meter beam distance for up to 1.5 hours and a low mode of 90 lumens with a 58-meter beam lasting about 3.5 hours, making it a versatile LED pen light for work, emergencies, or outdoor adventures. Built from durable anodized machined aluminum and designed for reliability, it is water resistant with a gasket-sealed glass lens and a sliding metal sleeve that protects the USB port, while the lithium-ion battery recharges in roughly 2.5 hours and includes a charge indication LED to signal charging or full power. A push-button tail switch provides easy momentary or constant-on operation, and the unit has been tested for impact resistance up to 1 meter for everyday carry confidence. Weighing only 1.8 ounces and measuring 5.95 inches, it slips easily into a pocket or bag, and the removable pocket clip along with a tear-resistant nylon holster enhances portability. The Streamlight Stylus Pro USB combines high performance and rugged practicality, backed by a limited lifetime warranty.