ATTENTION:the battery is not included ，please buy it by yourselffeature Zoomable Flashlight can be used as Bicycle Head light Out bright can come to max 2000 Lumens/lm High quality aviation aluminum alloy 3 switch Mode: Strong Brightness / Normal Brightness / Flashing Powered by 3pcs AAA Batteries or 1pc 14500 Battery(battery not included) Weight:22gpackage including1 X Zoomable Flashlight(battery not included)1 X Torch Light Holder