Klarus XTQ2Ultra-Quiet Tactical FlashlightHere comes the older brother to the XTQ1, the XTQ2, an extremely quiet, tactical LED flashlight, but with a much larger reflector that produces giant numbers in the beam distance department. The XTQ2 is fitted with Klarus' patented ultra-quiet tactical switch system, which is completely flat and has no audible click for the optimum stealth experience. Measuring in at 5.74", the XTQ2 is constructed from aerospace aluminum alloy with a military grade hard-anodized finish, making it compact and lightweight, yet extremely durable. The XTQ2 is a must-have for law enforcement, military personnel, and search and rescue teams.Lighting TechnologyCREE LEDThe XTQ2 churns out 870 lumens from a CREE XM-L2 LED, though, unlike its younger brother, the XTQ2 has a massive beam distance of up to 340 meters. Accessing the various output modes is done via Klarus' new tactical switch system. The unique flat metal switch features a large contact area and is very easy to operate. A long press of 1.5 seconds or more will turn the light on/off, while a double-tap will engage the strobe mode in any condition. Momentary-on can be activated by lightly pressing the switch when off, for those emergency situations. Also, the switch is indented to prevent from accidentally activating the light.PowerPowering the XTQ2 are either two Lithium CR123A batteries or a single rechargeable Li-Ion 18650 battery. Depending on whether you choose primary or rechargeable batteries, you will get greater outputs or longer run times. Rest assured, you don't have to worry about improperly inserting the batteries, as reverse polarity protection will prevent from damaging the light. Also, the XTQ2 is IPX-8 waterproof, so submerging the light in water up to 2 meters will not damage the battery or the light.Features: Patented ultra-quiet tactical switch system with no audible click Unique flat metal switch with large contact area, that is very easy to operate Indented switch design to prevent accidental illumination Large reflector design throws beam up to 340 meters Dual springs in head and tail for improved drop and shock resistance Toughened ultra-clear mineral glass with anti-reflective coating Constructed from aero-grade aluminum alloy HAIII military grade hard-anodized finish Impact resistant to 1 meter Waterproof in accordance with IPX-8 standards Included accessories: keychain, lanyard, and 2x spare O-rings Specifications: LED: CREE XM-L2 (U2) Battery: 2x CR123A or 1x 18650 (Batteries NOT included) Output mode/Runtime - 2x CR123A: High: 870 lumens / 3.8hrs Mid: 205 lumens / 14hrs Low: 25 lumens / 82hrs Strobe: 870 lumens / 11hrs Output mode/Runtime - 1x 18650: High: 700 lumens / 3.8hrs Mid: 154 lumens / 14hrs Low: 17 lumens / 82hrs Strobe: 700 lumens / 11hrs Peak Beam Intensity: 28900cd Max Beam Distance: 340 meters Dimensions: Length: 5.74" (146mm) Bezel Diameter: 1.88" (48mm) Body Diameter: 0.89" (22.7mm) Weight: 5.7 oz (162g) (excluding batteries)