Olight I3T EOS 180 Lumens Dual-Output Slim EDC Flashlight With LUXEON TX CW LED,60 Meters Tail Switch,Powered by AAA Battery With SKYBEN Battery Case (I3T) (I3T EOS Bundle) Powered by a convenient and widely available single AAA battery producing an output of 180 lumens Double helix body knurling for unique style and solid grip. Super easy carry: Barely know it is there with its lightweight and slender form factor. The dual direction pocket clip makes the I3T even more convenient for carrying in a pocket or attaching to a hat or strap. Highly integrated tail switch: The user can operate momentary on and quick mode shifting (5/180 lumens) all through a convenient tail switch. The I3T is equipped with a TIR optic lens producing a soft and balanced beam for comfortable use.