EASTSHINE Bundle: Nitecore EC4S 2150 Lumens CREE XHP50 LED Flashlight Handheld Searchlight by 3400mAh 18650 with 4PCs 700mah 16340 E07 16340 Batteries 1. Excellent High Capacity and Discharge Performance: NL189's Capacity is 3400mAh which is 67% More than Common 18650 Cell. Output Current to 4A makes NL189 Compatible with EC4S very well. Retain Up to 70% of its Original Capacity after 500 Full Charge and Discharge Cycles, Far more than the 500 pairs of CR123 Battries. 2. 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. 3. 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. 4. 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. 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).