Ledlenser H5 Core Headlamp is a compact, easy-to-use headlamp featuring a focusable light beam that has continuous dimmability Thanks to 160-degree lamp head rotation, the H5 Core headlamp is ready for many everyday tasks The H5 Core headlamp features the Ledlenser Flex Sealing Technology, which provides extremely high protection against dust and water (IP67) This headlamp is compatible with AA or NiMH batteries Patented Advanced Focus System for efficient, precise flood and spot lighting The headlamp has intuitive operation and stepless dimming with the Wheel Switch