The HF4R Core is a compact and lightweight headlamp for various uses. It has a light output of 500 lumens, is fully dust and water resistant (IP68) and equipped with an extra red LED at the front. Due to the existing "Fusion Beam" technology, different LEDs and lenses are combined into a homogeneous wide beam for close range and a sharply focused long-range beam. The intensity and beams can be controlled separately. In addition, you can flexibly adjust the lamp head and the slim headband can be adjusted individually. The Ledlenser HF4R Core has 4 light modes as standard (boost, high, medium and low) and is also equipped with "Transport lock" so that you do not accidentally switch on the lamp in, for example, a bag or backpack. In addition, the lamp is equipped with an automatic temperature control so that the lamp never gets too hot. The lamp also has a drop resistance of 2 meters and works at temperatures from -20 ° to 40 ° C. The "Ledlenser Connector System" is a new standardized interface that allows the lamp to be connected to various accessories available separately. The connector is included as standard. Finally, this headlamp works on a rechargeable Li-ion battery (3.7V, 1000 mAh) with a charging time of 3 hours and a maximum burning time of 35 hours in the lowest setting. Charging the battery is easy by means of the "Magnetic Charge System". The present indicator indicates when the battery is low and also what the state of charge is. The performance of the HF4R Core (lumens, burning time, range): • Boost: 500 lumens - 130 meters • High: 300 lumens - 2.5 hours - 100 meters • Medium: 120 lumens - 5 hours - 60 meters • Low: 20 lumens - 35 hours - 15 meters What do you get? The Ledlenser HF4R Core, 1x Li-ion battery, a USB-C magnetic charging cable, a connect adapter and no less than 7 years warranty after online registration.