Ultrafire CREE XM-L T6 5 Mode LED Flashlight Material: high quality 6061T aluminum alloy Crenellated strike bezel for enhanced self-defense 5 Mode: high / middle / low / strobe / sos (Lightly push the tail button to circle the modes) Powered by: 1x 18650 3.7v Battery OR 3x AAA battery(NOT included) Size: approx 135mm x 34mm(bezel)/26mm(body) Package includes: 1 x CREE XM-L T6 5 Mode LED Flashlight 1 x AAA battery adapter (Need to purchase battery separately) 1 x white sleeve