General description The Rechargeable LED Headlamp for Adults is a powerful lighting solution designed for outdoor enthusiasts. With a brightness of up to 90,000 lumens and an irradiation distance of 600 meters, this headlamp is equipped with high-quality LED chips that ensure durability for up to 100,000 hours. It features three high-capacity 18650 rechargeable lithium batteries, providing up to 10 hours of operation at high brightness and over 4 hours at low power. Technical specifications Power: 50W Brightness: Up to 90,000 lumens Irradiation distance: 600 meters Battery type: 3 x 18650 rechargeable lithium batteries Operating time: 10 hours (high brightness), over 4 hours (low power) Waterproof rating: IPX5 Compatibility and accessories USB rechargeable via any USB port Adjustable elastic strap for a secure fit Installation Easy to wear with adjustable strap Removable and washable for convenience Usage This headlamp is ideal for various outdoor activities including running,