The LED Lenser HF4R Core is a slim and lightweight basic model for everyday use. Its red front light as well as a perfect close and far-range illumination by two light sources make the HF4R Core the ideal headlamp for a camping trip or taking your dog for a walk. Features: Slim headlamp with three brightness levels as well as red front light Red light has the ability to preserve the natural night vision to the human eye Steplessly tilting lamp head provides flexibility, while the slim headband can be individually adjusted Bright and perfectly balanced light pattern: two light sources for short and long-range illumination Efficient battery: easily rechargeable via Magnetic Charge System, with battery status indicator Memory function: sets the light so it starts in the last light mode and brightness used when it is switched on Transportation lock: the optionally activatable lock function avoids accidental switching on of the light in the backpack or suitcase Resistant to continuous immersion in water and dust: IP68 Beam distance: 130 m Runtime: 35 hours Max. Luminous flux: 500 lm Rechargeable: Yes Materials: PC Charging time: 180 minutes Drop test height: 2 m Working temperature: -20 - 40 C°