Petzl Nao Headlamp

Delivering programmable, self adjusting lighting, the rechargeable Petzl Nao headlamp is an innovative option for hiking, trail running, climbing or any other demanding low light activity. By analyzing the available ambient light, the Nao's intelligent beam adjusts to maximize efficiency.Petzl's Reactive Lighting employs an integrated light sensor that measures and analyzes reflected light to instantly and automatically adjust the headlamp's beam pattern wide andor focused and light output to your needs. Lighting adjusts automatically to the distance of the object in front of you and it adjusts so quickly and indiscernibly that all you'll notice is that your headlamp gives you the illumination you need in varying conditions. If you're hiking or running and looking toward the ground in front of you, the beam is wide and at medium strength in order to properly illuminate obstacles in your path. When lifting your head to see further into the distance, the light output increases and becomes more focused.Two high power LED bulb produces a standard brightness of up to 355 lumens on the Reactive Lighting mode or 315 lumens in the non adjusting Constant mode. Programmable settings free downloadable OS by Petzl software available at www.petzl.comOS allow you to regulate the length of the beam from 157 feet 48 meters to 354 feet 108 m! By selecting the appropriate setting, you can also maximize efficiency, increasing burn time from 4 hours and 40 minutes to 8 hours on a single charge. A tiltable housing enables the Nao to aim its beam where you need it most. A flip up wide angle lens allows you to adjust the beam from a flood beam for sharp, proximity lighting to a spot beam setting for maximum distance. The Nao is powered by rechargeable Lithium Ion 2300 mAh rechargeable batteries included. With the batteries, the Nao weighs 6.6 ounces. A battery level indicator light warns you when the charge is nearly depleted. A 30 cm USB cable is included for recharging. The Petzl Nao headlamp is water resistant and suitable for all weather use. A streamlined, adjustable strap allows the Nao to adjust to fit varied head sizes. A top strap is included not attached for greater stability. E36 A