NiteCore EC4S 2150 Lumens XHP50 Flashlight with LumenTac Battery Organizer;

Specifications:
* LED: CREE XHP50
* Battery Run Time (18650)
+++Turbo: 2150 lumens, 45 minutes
+++High: 1100 lumens, 2 hours 15 minutes
+++Mid: 400 lumens, 6 hours 15 minutes
+++Low: 80 lumens, 30 hours 45 minutes
+++Ultralow: 2 lumens, 325 hours
* Supported Battery types: 2 x 18650, 4 x CR123
* Maximum Beam Distance: 306 yards / 280 meters
* Maximum Beam Intensity: 19600 cd
* Dimensions:
+++Length: 5.9 inches
+++Diameter: 1.57 inches
* Weight: 6.03 ounces (171 grams)
* Waterproof: IPX-8 standard (submersible up to 2 meters)

Features:
* Die-cast unibody construction
* Solid lightweight aero grade aluminum alloy construction
* Dual switch design offers unprecedented ease of use
* Thumbscrew lock on tail cap doubles as a tripod connector
* High efficiency constant current circuit
* Features advanced temperature regulation technology
* A power indicator built into the on/off switch indicates remaining battery power
* Direct access to turbo/ultra-low outputs
* A micro-textured reflector offers wide angle lighting
* Reverse polarity protection prevents damage from incorrectly installed batteries
* Stainless steel retaining ring protects core components from damage
* Toughened ultra clear mineral glass with anti-reflective coating
* Impact resistant to 1.5 meters
* Tail stand capability