shuaiguoFeature:1. Diverse Modes: A variety of lighting modes, a large lens, a large aperture, a wide range of illumination, to meet your lighting needs in different scenarios, with powerful functions.2. Easy to Use: Adjustable headband, comfortable and free, ergonomic design, stable and not easy to fall off, the angle of the lamp head can be adjusted to 180°, suitable for lighting needs of different angles.3. USB Charging: LED headlights are energy saving and environmentally friendly, USB charging, can be used with laptops, charging heads, power banks, car charging and other charging.4. High Quality Material: High quality aluminum alloy material, IPX5 rainproof, heat resistant and pressure resistant, non slip treatment on the surface of the keys, light touch switch to switch the lighting mode, durable.5. Wide Range of Use: Outdoor activities (climbing, camping, survival, hiking, diving, fishing, hunting, etc.), special activities (inspection, search, on?site inspection, security, marine first aid, etc.).How to Use:1. Unscrew the headlight and install a 18650 lithium battery (not included)2. Control the light switch and mode through the switch on the productSpecification:Item Type: LED HeadlightMaterial: Aluminum AlloySize:Width: Approx. 9cm/3.5inHeight: Approx. 3cm/1.2inGross Weight: Approx. 104g/3.7ozBulb: 2 x LEDs Life: 100,000 HoursSwitch Type: Push SwitchBattery: 1 x 18650 Lithium Battery (Not Included)Gear: Medium Light, High Light, Long Press 5 Level Dimming, Strobe (Double Click), SOS (3 Times in Strobe Mode)Luminous Color: White LightWate