Weighing just over 1 ounce (w/ battery) and ready for the demands of professional use, the ultra-compact 0.5 Watt LED Micro Stream runs on a single AAA battery. Developed for multiple tasks across all markets, the hallmarks of this light are its compact durable construction, optimum beam output and a tailcap switch for single-handed operation. The Micro Stream 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 Micro Stream 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 Micro Stream incorporates an unbreakable polycarbonate lens and multiple O-ring design providing waterproof 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 ultra compact and light weight flashlight with optimized output and run time. The durometer of the rubber used for the tailcap switch boot has been chosen for superior tactile feel and designed to keep out any foreign matter.