Features and Benefits:
Truly tiny, compact, weatherproof, machined aluminum light. Features a 100,000 hour lifetime LED that never needs replaced. Run time of up to 8 hours. Rotating "on-off" switching. Non-rotating snap hook for easy one handed operation when attached to a keychain. For every Blue Nano Light sold, Streamlight will donate $1 to Concerns of Police Survivors, Inc. (C.O.P.S.). Includes (4) LR41 alkaline button cell batteries 1.47" L, .36 oz.