The Streamlight Nano Light II is an ultra-compact keychain flashlight designed to provide steady, bright illumination while taking up minimal space in a pocket or on a gear bag. Measuring just 2.20 inches and weighing only 0.60 ounces, this black personal light is powered by a single AAAA alkaline battery (included). It delivers 20 lumens of output with a 22-meter beam distance, providing a reliable light source for one hour of continuous use. Its small form factor allows it to easily attach to key rings, zipper pulls, or lanyards, making it a convenient everyday carry tool for navigating dark paths or finding keyholes.