TheFolomov 26650Sis an innovative and compact (just under 4 Inches)flashlight that can be used for a wide range of tasks and lighting needs - indoors and out. Powered by just one USB rechargeable 26650 li-ion battery (included), 26650S max output to 2000 lumens. The singular multi-functional electronic tail switch provides you complete access to the dual setting modes and their sub-modes without having to move your hand. Waterproof level reach IPX8 , which reliable in any use condition. Lightweight and compact for easy carrying. 2000 max lumen output, 5 x CREE XP-G2 LEDs for optimal lighting. Multi-functional tail switch. Powered by 1 x 26650 USB rechargeable Li-ion battery (included). IPX8 Waterproof rating.