Ledlenser H7R.2 - Rechargeable LED Head Torch, Super Bright 300 Lumens Headlamp, Description \n\nRechargeable ergonomic wonder with a new lighting architecture\n The LED LENSER H7R is one of the most popular battery-pack operated headlamps. In the new LED LENSER H7R.2, we have improved upon our tried and tested features and enhanced them with the most modern of technologies and practical features: the recalculated lens ensures wider illumination, the ergonomics have been optimized and the energy concept is now based on lithium-ion-cells. A convenient charging status display and an option which allows the connection of multiple reachargeable batteries complete the concept. \nAdvanced Focus System (AFS)\n We have reconciled lens and reflector, Galilei and Newton, and make use of the advantages of both systems. The development of the reflector-lens, i.e. a combination of reflector and lens ( AFS), enables us to tailor-make light with an efficiency that amazes even experts. The Advanced .