... by 1 x AA battery ( not included ) 3w waterproof mini torch keychain led flashilight Size: 9.5cm x 2cm x 2cmYour great assistant ... in the darkness, super brightHigh tech, ultra-bright LED, operation life up to 100,000 hours, never need ... ideal companion for hunting, camping, fishing, hiking, traveling, climbing etcExtensive LED lifetime, high intensity 1LED 3 Watt white bright light the ...