Ultra Bright & Long LifetimeAfter comparing hundreds of LED beads, we developed this new headlamp with built-in P360 multi-core matrix LED bead to improve the light efficiency and brightness, whose photoelectric conversion efficiency is at least 40% higher than ordinary ones. Thus the intensity can reach up to 90000 lumens, and the max lighting distance can reach 1000m. Also the 3*2500mAH batteries included provide 10 hours working time and 50 hours at low settings after fully charged.11 Lighting Modes & ZoomableTo meet various lighting occasions, brightbeam headlamp is designed with 3 Lighting sources. The headlamp has 5 light modes as high, medium, low, strobe, sos and tactical zoom; The side lamp has 4 light modes as high, medium, red light, sos; Then constant red light and sos mode in backlight. Also the headlamp supports zoom function, so that you can adjust the spotlight for long-distance observation, floodlight for large-area lighting.90Adjustable & Ergonomic designThe head light could be rotated from 0-90 for a larger range of vision, and it's tightly fixed to avoid shaking and sliding while running. Then this ergonomically designed hunting headlamp is equipped with a sweat-resistant and adjustable headband to fit different head circumference size, so that it's absolutely suitable for all people.