The Fenix HM70R Rechargeable Headlamp delivers exceptional performance with a maximum output of 1600 lumens and an impressive 100-hour runtime on low setting powered by a high-capacity 21700 battery.Fenix HM70R 1600 Lumen Headlamp in BlackHigh-capacity 21700 rechargeable Li-ion battery (ARB-L21-5000)100 continuous hours runtime on 30 lumen low settingMultiple lighting modes including neutral white and red reading lightIP68 dustproof and waterproof ratingHidden USB-C charging port with 2A charging currentGlove-friendly switch with functional mode accessBattery level indicator and intelligent memory functionCompact 3.72-inch length designPerfect for outdoor adventures professional work camping and emergency situations where reliable long-lasting illumination is essential. The versatile lighting modes and waterproof construction make this headlamp ideal for any demanding environment.