EASTSHINE Bundle: Nitecore EC4S 2150 Lumens CREE XHP50 LED Flashlight by 2300mAh 18650 with 4PCs 700mah 16340 E07 16340 Batteries Nitecore D2 Charger 1. Excellent Die-cast Unibody Construction: Nitecore EC4S Die-cast solid lightweight aero grade aluminum alloy construction. It is made with supreme structural integrity, 200% STRENGTH of an ordinary flashlight that consists of three separate parts. It is only 6.03oz, 30% LIGHTER than similar products. It arranged 2*18650 batteries side by side, 37% SMALLER than similar products. 2. Excellent Lighting Performance: Nitecore EC4S Utilizes a CREE XHP50 LED and innovative Precision Digital Optics Technology, maximum output up to 2150 Lumens, 200% Brightness compared to CREE XM-L2 LED, 19,600CD beam Intensity, 306 Yards 280 Meters beam distance, High efficiency constant current circuit enables maximum runtime of 325 Hours,13.54 Days. 3. Excellent Multask Performance: Nitecore EC4S Dual switch design offers unprecedented ease of use, 5 brightness levels: Turbo, High, Mid, Low, Ultralow, and 3 concealed special modes: Strobe, SOS, Location beacon. The Smart designs make sure can direct access to Ultralow mode or Turbo Mode. The blue power indicator can also show the battery power at anywhere anytime. 4. Excellent Operation Performance: Nitecore EC4S highest level cooling fins add 30% cooling surface than ordinary, and its die-cast body ensure heat is distributed evenly and rapidly to surface, so the flashlight is warm, not hot to keep long hours under high output. Ergonomic body shape make the EC4S extremely easy to grip, double-side dibbles ensure sweat exude through effectively. 5. Buy Together: Get Nitecore EC4S FlashlightBundle with 2 Packs EASTSHINE E35 10A Button Top 18650 Batteries (B0154NRFVE) together, Can Save $3.95 with Code (CODE2E35).