OLIGHT I3S Brass/Cu Pocket Flashlight Nurses with Clip -Cree LED 180 Lumens AAA Keychain Light -3 Different Brightness Level-Waterproof EDC Torch THERMAL PROGRAMMATIC CONTROL SYSTEM : Built-in intelligent active thermal programmatic control system, output on high mode at 180 lumens for 3 minutes, the output will ramp donw by 50% of the initial output within 30 seconds ( Approximately 90 lumens ) Aluminum-made rough reflector , strengthened tempered glass with two-sided anti-reflection coating . MULTI-FUNCTION : i3S Brass is a LED keychain flashlight, comes with a removeable stainless steel pocket clip for every day carry . and the flat magnetic tail cap allows standing up as well as lighting up . COMPACT&SOLID : Brass alloy body processed by PVD technology with anti-scratch titanium god coating . BRIGHTNESS LEVEL : Cree XP-L LED , maximum output of 180 lumens, Beam distance reaches to 50 meteres . Twisting the head back and forth to change the brightness levels . Powered by one AAA ALKALINE or NIMH Battery . What You Get 5 warranty guarantee and the most thoughtful Customer Service. PACKAGE INCLUDED : 1* i3S-CU Brass EOS 1*AAA Alkaline Battery 1*Manual