Perfect for camping and late-night walks, the NEBO Einstein 1,000-Lumen Rechargeable Headlamp delivers a powerful 1,000 lumens of white light out to 120m with 5 user-selectable light modes (Turbo, High, Medium, Low, Red). The compact and lightweight ABS plastic and aluminum housing boasts an IPX4 water resistance rating, ensuring reliable performance in virtually any environment. Operating on lithium ion battery (included), this fully rechargeable headlamp offers up to 18 hours of continuous operation (low setting) and features an adjustable headband for convenient, comfortable wear. Can also be powered by two CR123A alkaline batteries (not included) with reduced performance.Manufacturer model #: NEB-HLP-0007. 1,000-lumen max output Fully rechargeable Compact and lightweight ABS plastic and aluminum housing Adjustable headband IPX4 water-resistant 5 lighting settings Li-ion 18650 rechargeable batterySpecs: Turbo (1,000 lumens) 10-second intervals/120m High (350 lumens) 3 hours/55m Medium (150 lumens) 6 hours/50m Low (10 lumens) 18 hours/14m Red (5 lumens) 12 hours/1mNOTE: Runtime is reduced by about 20% when using 2 x CR123A batteries