The Petzl Tikka RXP Headlamp comes with reactive lighting technology, which mean your light output adjusts automatically due to the light sensor. Light output and beam pattern instantly adjust to your environment. Light output is optimized to ensure the chosen burn time. The wide, mixed or focused beam gives lighting that can be adapted to any situation, from close range to distance vision (from 7 to 215 lumens, from 2 to 110 meters). The rechargeable Lithium-Ion battery with USB connection is suitable for frequent use.