Performance when you need it. The Petzl Tikka RXP Headlamp is what every hiker, trail runner, climber should have. This headlamp use it's Reactive Lighting technology to automatically adjust the brightness of the light for the scenario that it calls for. For example, If you were trail running in he afternoon and wanted to stop and check your map to see how much farther you have, when you pull up the map and raise it up the headlamp sensor will automatically adjust the brightness so your not shining yourself in the face and then when you look back up the lamp engages back into high beam.
Another great feature about this headlamp is that you can download the Petzl software online and be able to manually adjust any presets or sensors within the headlamp, in return customizing battery life.
You know you want it, you know you need it!