10 months only ... one more battery
NAO®
Ultra-powerful, multibeam rechargeable headlamp with REACTIVE LIGHTING technology that automatically adjusts brightness and beam pattern. 575 lumens
With REACTIVE LIGHTING technology, the brightness of the NAO headlamp adapts instantly and automatically to the environment. The headlamp thus provides maximal brightness (7 to 575 lumens), a longer burn time, along with greater usability and fewer manual interventions. The rechargeable Lithium-Ion battery is suitable for frequent use.