If no setting is explicitly named, the values for luminous flux (lumen/lm) and luminous range (metres/m) refer to the brightest setting and the values for luminous duration (hours/h) to the lowest setting. H7R Work Headlamp: Up to 1000 lumens, industrial-grade protection, Advanced Focus System, rechargeable, dimmable, and cooling technology. The main enhanced feature is the Bluetooth connectivity that allows the head torch to be connected to the included wireless remote control wristband for easy control, and it can also be connected to the Ledlenser app. A larger capacity 4800 mAh lithium-ion battery pack provides excellent run-times, with up to 4 hours in the highest constant output. This rechargeable head torch provides four brightness levels, a state-of-the-art multi-core optic, a beam range of up to 300 metres and up to 3500 lumens of light in BOOST mode.

The H19R Core features a red light to preserve night vision, a swiveling lamp head and removable battery with magnetic charging.H5R Core Headlamp: 500 lumens, patented Advanced Focus System, waterproof and dust-resistant, dimmable, and compact.

The charging feature suits us well as the torch is always kept in a handy place and always charged up and ready to use. Man hat das Licht immer da, wo man es braucht, daher sind Kopflampe super zum Biken im dunkeln und segeln. H7R Signature Headlamp: Up to 1200 lumens, Bluetooth connectivity, Advanced Focus System, extreme protection, customizable light modes, and dimmable.

The H19R Signature has improved ingress protection thanks to the flex sealing technology, now offering a rating of IP68 making it fully resistant to solids and fully waterproof when submerged in water up to a depth of 2 metres for 30 minutes, which makes it perfect for everyday use and outdoor activities such as fishing, camping and hiking. The Ledlenser H19R Core head torch with up to 3500 lumens features Fusion Beam technology, which combines the power of two lenses, enabling one to control the flood and the other the spot light for perfect illumination.

The H19R CORE has improved ingress protection thanks to the flex sealing technology, now offering a rating of IP68 making it fully resistant to solids and fully waterproof when submerged in water up to a depth of 2 metres for 30 minutes, which makes it perfect for everyday use and outdoor activities such as fishing, camping and hiking. A 10 seconds boost output offers a maximum of 3500 lumens, while the highest constant output is 1600 lumens and the lowest constant output is 200 lumens. The LEDLENSER rechargeable headlamp is provides extreme illumination, a state-of-the-art multi-core optic, four brightness levels, the ability to focus the light beam up to an impressive 300 meters and a host of other features. To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average.

The transportation lock also ensures that the light isn't switched on by accident when in a bag or in storage. The battery goes in a separate battery pack that sits on the back on the headband, which helps to evenly distribute weight, or the included extension cable enables the battery pack to be mounted on belt or back pack to lighten the weight on the head.