NITECORE EC20 EC20 Explorer Flashlight, Black, 960 lm, 1x 18650 Material: Aero Grade Aluminum Alloy w/HAIII Military Grade Hard-Anodized Finish Powersource: 1x 18650/2x CR123A Bulb: Cree SM-L2 T6 LED Output: High/Medium/Low/Lower Lumens: 960/210/50/1 Run Time: Up to 520 hours on lowest mode Submersible: IPX-8, 2m (waterproof and Submersible) Carry System: Handheld Rechargeable: Yes