OLIGHT EDC Best LED Flashlight S2 Cree XM-L2 950 Lumens EDC LED Torch with Variable-Output Side-Switch for Outdoor Spring Outing Camping Hiking, Black VARIABLE-OUTPUT: 4 Standard Modes(950 Lumens, 400 Lumens, 80 Lumens, 10 Lumens), 2 Special Modes(0.5 Lumens Moonlight Mode and 10Hz Strobe Mode) HIGH EFFICIENCY: Cree XM-L2 / U3 LED, Max 950 Lumens and Max 142 meters beam distance. 22 degree emission angle 90% transparent ratio PMMA TIR lens to deliver homogenous spot light. Turbo mode has a limit of 2 minutes for constant on, after that the light output will ramp down by 50% within 1 minute BUILT-IN TIMER: Allow you to set a 3 or 9 minutes time frame before the light shuts. Itself off automatically. Once the light is on double click the switch to enter into the timer mode. Flash once--3 minutes; flash twice--9 minutes SMALL AND PORTABLE: Length 4.06 inches + Bezel Diameter 0.91 inches. Olight S2 is a excellent choice for users looking for a flashlight that can take a single 18650 battery and still have an extremely small form factor WIDELY USED: Powered by 2x CR123A/RCR123A or 1x18650(Not included). Including a low-profile side switch, removable pocket clip, magnetic tail cap, and timer. Flat tail cap design contains a strong magnet providing the ability to place it upside down and use it as a hands-free