SecurityIng&reg; 600 Lumens Zoomable XM-L T6 LED Flashlight 5 Modes Adjustable Focus Lighting Lamp Flashlight Torch with 1 x 3.7V 1800mAh 18650 rechargeable Li-ion Battery & Charger Made of high quality 6061T aluminum alloy, sturdy and durable enough for long time daily using. 5 switch modes: high / medium / low / strobe / SOS. Support zoom in, zoom out function with adjustable focus. Super mini size, bright, blinding effect. Power Source: 1 x 3.7V 18650 Battery (Included) or 3x AAA batteries (Not Included). Skid-proof and waterproof design, best suitable for Outdoor Hiking, Camping, Climbing, Cycling, etc.