The Petzl NAO® RL is an ergonomic, ultra-powerful and rechargeable headlamp featuring REACTIVE LIGHTING® technology.  It provides 1500 lumens of brightness and weighs just 145 grams.  Comfortably balanced, the headband is easily adjustable and maintains excellent support.  With REACTIVE LIGHTING® technology, the brightness automatically adapts to the ambient light.  Additionally, red lighting at the rear of the headlamp allows you to remain visible at night.

There are three white lighting levels: MAX BURN TIME, STANDARD (better power/burn time balance), and MAX POWER.  

The battery pack is in the rear to distribute the weight of the headlamp over the entire head, making it balanced and comfortable to wear and a storage pouch allows you to turn the headlamp into a lantern in STANDARD mode, or carry an additional battery.

The Lithium-Ion 3200 mAh battery is rechargeable with a type C USB port included.  The rechargeable R1 battery can be used as a spare battery to charge other devices.  The headlamp has a burn time of between 10 hours and 80 hours depending on the lighting level used.