Features and Benefits: Provides steady, bright light for one hour of run time with a single AAAA alkaline battery; Mini 2.2 inch super-bright light; Includes a non-rotating snap hook for easy one-handed operation when attached to a keychain; 20 lumens, 120 candela with a 22-meter beam distance; IPX7-rated design, 2-meter impact resistance tested; Impervious to shock with a 50,000-hour lifetime; Rotating "On/Off" head switch;