Describe: 1. Material: High quality aluminum alloy + ABS material, lightweight and durable. 2. Design: The product has 4 colors of light composition (red light/green light/white light/blue light), suitable for lighting in various environments, powerful, convenient and practical, you deserve it. 3 . Headband: Elastic headband, equipped with 3 headband buckles, three adjustable positions, fits most people to the greatest extent, freeing hands. 4. Adjustable: Headlights can be adjusted up and down at 90° to avoid road interruptions and obstacles, helping you see everything in front of you. 5. Lighting mode: 4 lighting modes (red light/green light/white light/blue light), which can be switched with a button according to actual environmental needs. This product can be rotated to adjust the focal length, which is convenient and practical. 6. Safety Warning: There is a red light warning design at the tail of the headlight to warn future generations, which makes it safer to travel at night. 7. Light source introduction: (1) White light: high brightness white light can provide strong illumination at night, suitable for night running, night riding, mountaineering, camping, hiking, maintenance and other outdoor activities. (2) Red light: Red light at night is more obvious than other color headlights. It can be used for sending signals at night, reading maps, stargazing, etc. It can provide better night vision and will not scare away prey. (3) Green light: Animal eyes are not sensitive to green light. Therefore, the headlight is very suitable for night vision, hunting, fishing, etc. When hunting, fishing or observing animal breeding at night, the green light not only will not scare the animal, but also can be spotted without disturbing the animal. br>(4) Blue light: Blue light is harmless to human body and will not have any negative effect on humans. The reflective effect of blue light on the fishing float is second only to violet light. The reflective effect of blue light on fluorescence is very obvious. It is neither too strong nor too weak. It's unique Blue light headlight has become the most professional choice for night fishing. Specification: Name: 4 in 1 Adjustable Focus LED Headlight Color: Black Color of light: red/green/white/blue (one key switch) Lamp beads: XPG Use battery: 2*18650 lithium battery (not included) Light mode: 4 lighting modes (red light/green light/white light/blue light) Whether to adjust the focus: zoom Switch type: push button switch Maximum range: 200-500 meters Waterproof level: life level waterproof Headlamp diameter: 3.7cm (not including headband size) Net weight: 152g Gross weight: 210g Package type : Package A: 1*headlight, 1*charging cable Package B: 1*headlight, 1*charging cable, 2*18650 lithium battery Package C: 1*headlight, 1* charging cable, 2*18650 lithium battery, 1*car charger Package D: 1*headlight, 1*charging cable, 2*18650 lithium battery, 1*EU plug Package E: 1 *headlight, 1*charging cable, 2*18650 lithium battery, 1*car charger , 1*EU plug Tip: 1. Due to manual measurement, please understand the error of 1-3 cm. 2. Due to the light and screen difference, the product color may be slightly different from the picture.