The Streamlight ProTac 2L-X USB is a complete rechargeable flashlight system featuring 500 lumens of bright output with an integrated USB charging port built into the included 18650 battery.Streamlight ProTac 2L-X USB Rechargeable Flashlight500 lumens maximum outputTEN-TAP programmable switch technologyHigh low and strobe light settings2600mAh lithium ion battery with integrated USB charge portDurable aluminum constructionComplete rechargeable system includedPerfect for tactical professional and everyday carry applications this flashlight combines powerful illumination with convenient USB recharging capability and customizable programming options.