SecurityIng Waterproof 600 Lumens 5 Modes LED Flashlight Handheld Lighting Torch for Camping Hiking etc(18650 Battery Not Included) Super Bright: Adopting CREE XM-L T6 LED chip, the output brightness up to 600Lm. Perfect item for home using or outdoor sports, such as camping, traveling, hiking, cycling, searching. 5 Modes Options: High &gt; Middle &gt; Low &gt; Strobe &gt; SOS. One button operation, easy to operate. Suit for different needs. Concentrated Beam: Using fortified glass lens, aluminum light cup and smooth reflector. Provides more concentrated beam Waterproof & Shockproof: Be made of 6061T Aluminum Alloy, waterproof and weather resistant. The slender handle is perfectly convenient to hold. Power Source: Powered by 1 x 18650 3.7V rechargeable battery (Not Included). Low power consumption, long lifespan, can up to 10,000 hours. Internal wiring applies constant current output, can utilize the batteries to a maximum extent.