Tough. Versatile. Multi-functional. Easy to operate.Like the soldiers that it is designed for the Olight M20 Warrior is finely honed, tough and versatile. The M20's rugged structure, stainless steel striking bezel, blindingly bright strobe light and multiple functions give it a strength and versatility never seen before in the hand-held lighting market. The M20 Warrior is all the lighting tool you need in the battlefield or on the job. Bright, rugged, and flexible the M20's multiple output levels and modes lend it a versatility and durability that make it the ideal tool for any task. The M20 Warrior is a great choice for personal protection; the blinding light and crenellated striking bezel on both ends give added effectiveness when used for self-defense.With 3 levels of output and up to 340 lumens, plus a tactical strobe, the M20s Warrior is sure to please many types of users from the outdoorsman to the soldier.Features:World-class super bright Cree XP-G S2 LED. Three output levels and strobe, simple interface to adjust output,loosen head then retighten to select modes. Automatic memory function, remember last used setting and can be preset to specific output mode for instant access. Multiple battery choices, uses both Li-ion Rechargeable & Non Rechargeable Lithium Batteries to provides the ultimate power to weight ratio and reliability. Ultra Efficient Advanced Digital Power Management System for a smooth and even brightness over the duration of battery life. Reverse polarity protection circuit to protect electronics against damage caused by battery being installed incorrectly. Superior heat sink quick dispersion of heat to protect LED and electrical components and ensure long life. Side switch to select output when power on or direct access to strobe when power off. Ergonomic design, solid aluminium construction. Tough durable Type III Hard Anodization Built to meet Mil-specMIL-STD-810F. UL # MH48285 O-Ring sealed to provide excellent water resistance and long service life. Grip ring with anti-rolling design, enabling use with the different tactical holds,removable to convert to smoother straight body. Stainless steel strike bezel (Removable). Stainless steel pocket clip (Removable). Ultra Clear Glass lens, non scratch with Anti-Reflective Coating. Heavy duty quick release lanyard to prevent loss and easy access. Interchangeable reflectors. Full Textured (orange peel) Reflector provides a perfectly centerd flawless beam reaching distances not seen in other LED lights. Optional Smooth Reflector used to gain even greater distance for further targets,ideal when used as weapon light. Battery magazine use with CR123A batteries, hold batteries firmly to provide excellent continuity and battery life under heavy shock or recoil.Specifications:LED Cree XP-G S2 LED, life span up to 50000 hours, Max Output 340Lm Weight120.5g without batteries DimensionsOverall length 140mm, Body Dia25mm, Bezel Dia33.5mm. BatteryUses 2x CR123A