The BCRF Pink Nano Light II from Streamlightis a miniature keychain flashlight that supports the Breast Cancer Research Foundation (BCRF). For every light sold, Streamlight will donate $1 to the BCRF. This light runs for 1 hour at 20 lm, 120 candela, and has a 22m beam distance. Powered by a AAAA alkaline battery. It features a rotating on/off head switch, and a non-rotating snap hook for easy one-handed operation when attached to a keychain. Powered by LED technology, this light is shock resistant, IPX7 waterproof to 1m for 30 minutes, and is 2m impact resistance tested.