Product Description The job doesn’t pause when the lights get low. A technician crouches beneath a vehicle, tracing a harness tucked deep behind the firewall. An inspector walks a dim warehouse floor, scanning for labels and torque marks before shift change. A security officer checks equipment tags in the early hours of the morning. Each scenario calls for dependable, focused illumination exactly what the Streamlight Stylus Pro pen light Series delivers. Built for professionals who work in tight spaces, low light, or unpredictable environments, the Stylus Pro models all feature a brilliant 100-Lumen white LED that cuts through darkness with a clean, even beam. Compact and lightweight, each light clips easily into a shirt pocket or tool pouch, so it’s always ready when needed. Technicians, inspectors, industrial workers, law enforcement, and maintenance crews rely on Stylus Pro lights for everything from quick checks and equipment inspections to routine maintenance and emergency response. Crafted with durable aluminum bodies, tail cap switches, and powered by 2-AAA batteries, these pen lights combine portability with professional-grade performance. Whether you’re on the shop floor, in the field, or on patrol, the Streamlight Stylus Pro provides the everyday carry inspection light that keeps pace with demanding work. From the Manufacturer Weighing just over 1-1/2-Ounce (with battery) and ready for the demands of professional use, the sleek compact 0.5-Watt LED stylus pro runs on two AAA batteries. Developed for multiple tasks across all markets, the hallmarks of this light are its compact durable construction, optimum beam output and a tail cap switch for single-handed operation. The stylus pro is machined from solid aircraft-grade aluminum alloy and is plated with a MIL-Spec Type II anodize finish providing excellent abrasion and corrosion resistance. The stylus pro also incorporates an internal polymer body liner and shockproof switch housing allowing for operation under the most extreme conditions. The light has been drop test verified above the industry standard of six feet and extensively field tested. The stylus pro incorporates an unbreakable polycarbonate lens and multiple O-ring design providing water resistant construction and contamination resistance. Utilizing the latest 0.5-Watt emitter technology and Streamlight's proprietary micro optical system (MOS), Streamlight engineers have produced this sleek, compact and light weight flashlight with optimized output and run time. The durometer of the rubber used for the tail cap switch boot has been chosen for superior tactile feel and designed to keep out any foreign matter.