A useful addition to your tool crib, professional, or outdoor gear, the lightweight and durable Olight S1 Baton LED Flashlight is an ultra-compact flashlight featuring a powerful 500-lumen XM-L2 CW LED plus a Total Internal Reflection (TIR) optic that collimates light and provides light transmission of 90%. With four output settings from 0.5 to 500 lumens of bright white light, you can illuminate your mission, trail, or campsite. The conveniently located side switch powers the light on or off and signals your friends or rescue teams with a strobe or momentary on mode. The switch is recessed to prevent accidental activation, and if your application requires, use the built-in timer with range from 3 to 5 minutes. The light also offers Reverse Polarity Protection to protect its circuit and prevent the LED lamp from burning out when batteries are inserted incorrectly.