And because the needs of a mountain climber differ from those of a hiker or someone who just wants the ultimate headlamp for rummaging through a wine cellar you can connect the Nao to your computer's USB port and fine-tune the settings using Petzl's software for Windows and Mac.
Unlike the area's typical hiker lodgings, it has solar electricity, hot water, comfy beds, and a staff--a mountain guide looks after guests' safety, while a lodge host attends to their comfort, serving meals and handling cleanup duties.