New and Improved! The EC4GT has now been upgraded with a new LED and a brighter 1800-lumen output! Check it out now!Nitecore EC4GT LED FlashlightIncredibly Far-Reaching!An enhanced version of the EC4, the Nitecore EC4GT LED Flashlight is a potent combination of imposing power and intelligent design. Powered by either a pair of 18650 batteries or four CR123As, the EC4GT uses its upgraded CREE XP-L HI V3 LED to generate up to 1000 Lumens of stunning brightness, which can throw as far as 475 meters thanks to the light's deep metal reflector. The light also features 4 dimmer constant brightness settings, as well as three specialized tactical outputs; Strobe, S.O.S., and Location Beacon. Operating the EC4GT is a breeze thanks to the light's easy-to-use dual side switch interface, using its power switch to activate and deactivate the light and using the mode switch above to cycle through all 8 outputs. The power switch even doubles as a power indicator so you can keep track of the light's charge.Innovative DesignPerhaps upstaging the EC4GT's impressive output is its truly unique and sophisticated design. Crafted from lightweight and sturdy aero grade aluminum alloy, the EC4GT is one of the few flashlights with a die-cast unibody, meaning the main body is one solid piece. The unibody design gives the flashlight enhanced structural integrity, providing exemplary impact and water resistance. The body also features a rhombic knurling for a stronger grip and cooling fins to help dissipate heat and prevent overheating from extended use. The EC4GT's flat tailcap allows it to stand upright for candle lighting and even features a thumbscrew lock that can double as a tripod connector to provide another hands-free lighting option. The light features Advanced Temperature Regulation (ATR) Technology and reverses polarity protection, so the EC4GT is equally protected from internal damage.Limited Edition BezelIn addition to its standard all-black design, the EC4GT is available with limited edition colored bezels (Red and Blue), which make it unlike any flashlight of its kind and sure to stand out. Each limited edition light comes with a unique serial code, as proof of the rarity of your purchase. With only 1000 of each color manufactured, saying supplies are limited would be an understatement, so grab yours before they run out!Features: Available with Limited Edition Series with Red and Blue Bezels and unique serial codes Body made from durable aerograde aluminum alloy, designed with cooling fins and rhombic knurling Toughened ultra-clear mineral glass lens with anti-reflective coating Deep aluminum reflector provides greater throw distance Stainless steel retaining ring protects internal components from damage Trio of Tactical Outputs Strobe: Used to blind or disorient a target S.O.S.: Universal signal for help for emergency situations Location Beacon: Efficiently marks current position with quick flash Easy-to-use dual side switch interface allows for simple one-handed operation Power Switch is used to activate and deactivate the light Mode Switch cycles through all 8 outputs Direct access to Turbo and Ultralow outputs Power switch doubles as an LED power indicator, displaying remaining battery charge Advanced Temperature Regulation (ATR) Technology helps prevent overheating caused by extended use Reverse polarity protection prevents damage caused by improperly inserted batteries Thumbscrew lock on tailcap doubles as tripod connector Tail-stand capability for hands-free candle lighting Included Accessories: 1 x Nylon Holster 1 x Lanyard Specifications: LED: CREE XP-L HI V3 LED Power Source: 2 x 18650 OR 4 x CR123A IPX Rating: IPX-8 (Waterproof and submersible up to 2 meters) Impact Resistance: 1.5 meters Brightness Outputs (Using 2 x 18650): Turbo - 1000 Lumens - 2 Hours High - 420 Lumens - 4 Hours 45 Min. Medium - 200 Lumens - 10 Hours Low - 50 Lumens - 25 Hours Ultralow - 1 Lumen - 380 Hours Brightness Outputs (Using 4 x CR123A): Turbo - 1000 Lumens - 1 Hour 15 Min. High - 420 Lumens - 3 Hours Medium - 200 Lumens - 7 Hours 30 Min. Low - 50 Lumens - 16 Hours 30 Min. Ultralow - 1 Lumen - 170 Hours Peak Beam Distance: 475 meters Peak Beam Intensity: 56,500 cd Dimensions: Length - 6.1" (155 mm) Head Diameter - 1.58" (40 mm) Body Width - 1.45" (36.8 mm) Body Height - 1.1" (27.9 mm) Weight: 6.03 oz. (171 g)