Tested [High-Brightness LED Light - Adjustable Beam Angle - Disaster/Power Outage Measures] Brightness: 2000 lumens, maximum illumination distance approximately 600 meters. With this brightness, it's perfect for night walks and activities in dark places! It's also useful during earthquakes, disasters, and sudden power outages. The tip of the headlight allows for adjustment of the beam angle (up to 90 degrees), so you can illuminate not only your feet but also a wide area around you, helping to avoid danger. [Adjustable Angle] The hands-free headlight can rotate 90 degrees, allowing you to adjust the appropriate beam angle depending on the actual environment, expanding the range of uses. Ideal for indoor and outdoor use. It uses high-quality elastic bands, making it easy to adjust, attach, and prevent slipping. Suitable for both adults and children. [USB Rechargeable - Long-Lasting Illumination] Built-in PSE-certified 18650 batteries (2), safe and reliable. Unlike AA alkaline batteries, it can be recharged many times, and you can use it as a bright lantern or sensor light every time. USB charging port design allows you to charge the headlight with a mobile phone charging adapter, mobile power supply, computer, etc. [Dustproof and Waterproof] With IPX4 waterproof performance, it is recommended for use in rainy weather. Visibility is good even in bad weather such as rain and fog, making it easier to see from a distance and helping to prevent accidents. [Widely Useful] You can select from 8 modes for use in different situations. This LED headlight is convenient for various situations such as mountain climbing, night fishing, camping, disaster preparedness, work, and hiking. The red light on the back of the head ensures safety during nighttime and bad weather work.