Weiita F1660 Tactical Flashlight 600 Lumens Cree LED XML T6 Zoomable Shock Resistant CREE XML T6 LED light bulb; 600 Lumens output power Easy zoom with one hand. Weather proof and shock proof. Powered by 1 pc Li-ion 18650 rechargeable battery (included) or 3 pcs AAA batteries (not included) Strong aluminum alloy shell; weatherproof, shockproof, and durable