Professional-level features for professional-level activities, all in an ultra-compact design. Experience complete control over your lighting with Constant Mode, Pass Thru + Charging, and 8 different lighting modes that allow you to see and be seen on your next adventure. The 3D-SlimFit construction from BioLite integrates the electronics directly into the headband, providing a flush, flat front that doesn't wobble. The rear battery pack distributes weight and keeps pressure off your forehead, while the moisture-wicking band stays cool and dry.

Professional feature: Constant Mode. Most headlamps automatically adjust brightness to conserve battery life, dimming over time as your eyes adapt to the darkness. This works well in many cases, but it shouldn't be the only mode available for technical terrain or complete darkness. With Constant Mode, you have full control over the lumens and can set a constant brightness level that won't dim—unless you command it with a button press.

Professional feature: Run forever. As a rechargeable headlamp, the runtime of the Headlamp 800 can be extended indefinitely thanks to Pass Thru+ Charging. This means the headlamp can be used while it is simultaneously being charged.