Precision - Narrow in On Tactical PerformanceThe Precise Series (P series) from Nitecore has come forward as their line for premier tactical LED flashlights. All of these lights come outfitted with the latest LED technology and streamlined, intuitive user interfaces. The P16 stands out in this line as a light that straddles the line between every-day, around the house light and super precise, tactical light. The lumens-per-dollar value of this light is through the roof! We're such big fans of this light, we've even included it as number two on our Best Lumens-Per-Dollar flashlights. Ultra-Bright with Super Long ThrowThe P16 is advanced enough, and offers enough tactical capabilities, that it meets the demands of police officers and military personnel. Running on two CR123As or a single 18650 battery, the P16 outputs a blinding 960 lumens of light on High mode and gets an incredible 26 hours of runtime on low mode. At 1.57 inches in diameter, the head of the P16 is quite large in comparison to the wrest of the light, this is in order to provide the best in reflector technology. The P16 utilizes "Crystal Coated Technology" along with "Precision Digital Optics" to produce 20,900 candle power and 289 meters maximum throw distance. This six inch light can function as a legitimate search light with that kind of throw - if you have a big yard or otherwise a lot of land, you'll find this feature to be invaluable.3 Output Modes, Strobe, and BeaconThere's an output for any situation with the P16. High, Medium, and Low offer their own advantages - High for maximum brightness/throw/search capabilities, Medium for most situations, and Low for the longest consistent run times. While Strobe is used for self defense to disorient and confuse attackers, SOS for emergency light-based communication, and super efficient beacon mode for the longest possible run times in emergency situations. The crenelated "window smasher" bezel is designed for just that, to break through hard objects otherwise impossible, or too dangerous, to break.The P16 is built tough to withstand all weather, harsh work environments, and tactical applications. It's constructed with aero-grade aluminum alloy and given a HAIII military grade hard-anodized finish to resist wear and tear. Naturally the P16 is also O-ring sealed and IPX-8 rated, meaning it's fully submersible in up to 2 meters of water. It also comes with one of the most sturdy pocket clips I've ever seen come standard with a light - detachable (if you'd prefer it without), titanium plated stainless steel. The simple tail and side-switch interface allows for On/Off activation and cycles through modes, and the side-switch will light up to indicate 50% battery, or flash rapidly to indicate critically low battery levels. All of this make thew P16 one of the best tactical lights, for the price, on the market. Features: Integrated 'Crystal Coating Technology' and 'Precision Digital Optics Technology' provides extreme reflector performance Side switch interface provides one-handed operation and easy access to all flashlight functions Side switch features a power indicator light which displays remaining battery power Power indicators secondary function displays battery voltage Intelligent memory function stores preferred brightness setting Integrated impact resistance mechanism with reverse polarity protection Flashlight head retaining ring protects the core components from damage Toughened ultra-clear mineral glass with anti-reflective coating Constructed from aero grade aluminum alloy with HAIII military grade hard-anodized finish Tail stand capability Stainless steel titanium-plated two-way clip and tactical ring included Included accessories: nylon holster, pocket clip, lanyard, tactical ring, spare tail cap, spare O-ring Specifications: LED: CREE XM-L2 T6 LED Power Source: 1 x 18650 (Included) OR 2 x CR123A IPX Rating: IPX-8 (Waterproof and submersible up to 2 meters) Impact Resistance: 1.5 meters Brightness Outputs / Runtimes (Using 1 x 18650): Turbo - 960 Lumens - 1 Hour 45 Min. High - 230 Lumens - 5 Hours 30 Min. Medium - 65 Lumens - 26 Hours Low - 1 Lumen - 520 Hours Brightness Outputs / Runtimes (Using 2 x CR123A): Turbo - 960 Lumens - 1 Hour 15 Min. High - 230 Lumens - 4 Hours 45 Min. Medium - 65 Lumens - 17 Hours Low - 1 Lumen - 300 Hours Peak Beam Distance: 289 meters Peak Beam Intensity: 20,900 cd Dimensions: Length - 5.94" (151 mm) Head Diameter - 1.57" (40 mm) Body Diameter - 1.0" (25.4 mm) Weight: 4.8 oz. (excluding batteries) (136 g)