Truly tiny, the Nano Light is a weatherproof, personal flashlight featuring a 100,000 hour life LED. Includes a non-rotating snap hook for easy one handed operation when attached to a keychain. Easily attaches/detaches to just about anything with convenient pocket clip or key ring. Up to 8 hours run time. Machined aircraft-grade aluminum with anodized finish. Powered by 4 alkaline button cells (included). 100,000 hour lifetime high-intensity LED. LED available in white (10 lumens). 1.47-Inch x 0.51-Inch, 0.36 oz. Available in black.