Features1Durable: The flashlight is made of aviation aluminum, and the surface is added with hard anodizing, which will not rust and feel comfortable to hold. 2Compact: This small but bright flashlight is compact enough to fit in your pocket, backpack or purse. Ideal for use around the house, dog walking, or camping. 3Adjustable Brightness: 5 gear adjustment to meet your various needs and adapt to various environments. There is strong light, medium light, low light, explosive flash, slow flash. 4Bright: Retractable zoom for wide coverage. Can be charged by USB or used with traditional AAA batteries. Effortlessly illuminates an entire room or backyard, yet remain small enough for everyday carry. 5Size: Measuring 5.1x1.2in, the small flashlight is for outdoor, camping and hiking. It also works great as an everyday emergency light.SpecificationItem Type: FlashlightWeight: Approx. 174g / 6.1ozFlashlight Size: Approx. 13x3cm / 5.1x1.2inBackpack Light Size: Approx. 5.5x2.7cm / 2.2x1.1inProduct Material: Aluminum Alloy Lens Material: Optical Convex MirrorFlashlight Applicable Battery: 1 x 18650 Lithium Battery (Shipped With Supporting Battery) Or 3 x AAA (Not Included)Battery Capacity: 1200mahMaximum Range: 100-200 MetersWorking Gear: 5 Gear (Strong Light, Medium Light, Low Light, Burst Flash, Slow Flash)Luminous Flux: 1000LMColor Temperature Of Light Source: 6000KFocus Or Not: Telescopic FocusOn Off: Rear Button Type SwitchBackpack Light Battery: Built In 2 x 2032 Button Battery (Shipped With Built In Battery)Battery Capacity: 240mahPackage List1 x Flashlight1 x 18650 Battery1 x White Battery Case1 x Traditional Battery Charger 1 x Blue Backpack Light1 x Hook And Loop Fasteners1 x Small Screwdriver1 x AAA Battery Holder