Product DescriptionStreamlight 66122 Stylus Pro Pen Light with White LED and Holster, Blue. A sleek pen light that conveniently fits in your pocket. Ideal for anyone that needs a compact, durable light to carry on a daily basis.From the ManufacturerWeighing 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.