The Nitecore EC11 packs a powerful 900 lumens output with extended reach of up to 207 yards of throw, an ideal torch for any tactical user or for your outdoor activities.  Paired with either a CR123 or 1835 IMR battery, it will provide you with adequate time even in turbo to accomplish all of your tasks with time to spare.   Its dual button interface also makes for easy one-hand operation. 
 Features:
  
Integrated "Precision Digital Optics Technology" provides extreme reflector performance  Boasts a peak beam intensity of 9000 cd and a throw distance of up to 207 yards (190 meters)  Dual switch design ensures unprecedented ease of use Secondary red LED provides constant / flashing illumination Indicates battery voltage with a red flashing LED (accurate to 0.1V)  High efficiency constant current circuit enables maximum runtime of up to 20 hours Direct access to ultra-low and turbo output Reverse polarity protection prevents damage from an incorrectly inserted battery Detachable anti-rolling clip Toughened ultra-clear mineral glass with anti-reflective coating Constructed from aero grade aluminum alloy HAIII military grade hard-anodized Waterproof in accordance with IPX-8 ( 2 meters submersible)  Impact resistant to 1.5 meters Tail stand capability Contents in the package: EC11 flashlight, quality holster, (R) CR123 battery magazine, clip, lanyard, spare O-ring Specifications:
  
Manufacturer: Nitecore  LED: Cree XM-L2 U2  Weight: 1.60 Oz (45.3g) (without battery)   Waterproof in accordance with IPX-8 (2 meters submersible) Battery Runtime using 1x 18350 IMR rechargeable battery: 
  
Turbo: 900 lumens - 30 minutes High: 300 lumens - 45 minutes Medium: 160 lumens - 90 minutes Low: 70 lumens - 2 hours 30 minutes Ultra-low: 1 lumen - 12 hours  Battery Runtime using 1x CR123 battery 
  
Turbo: 430 lumens - 45 minutes  High: 230 lumens - 90 minutes Medium: 100 lumens -3 hours 15 min Low: 40 lumens - 8hr 30 min Ultra-Low: 1 lumen / 20h Battery types supported: 1x CR123 or 1x IMR18350 Battery  Beam profile 
  
Distance: 207 yards Intensity: 9000 cd  Dimensions: 
  
Length: 2.95 inch (75mm)  Head Diameter: 1 inch (25.4mm)  Tail Diameter: 1 inch (25.4mm)