The worst part about running through the night is the sudden drop in cognitive capacity. As soon as the sun sets, circadian rhythms settle in. It’s the body’s way of saying, “If you won’t put yourself to bed, I’ll do it for you.” The challenge then becomes one of not just running for obscenely long periods, but also fighting against the basic human instinct to call it a damn day.
By mile 90 of the Leadville 100 this past August, I found myself deep in that incoherent hole. The combination of exhaustion and cold air rolling off the water sapped all sensation from my extremities. I couldn’t feel my feet hitting the ground or my arms pumping back and forth, and couldn’t place myself in space. “Floating” seems like a more accurate description of how it felt to cover those final miles than anything resembling actual running.
One key reason that I was able to push through the numbness, and carry myself to a podium finish, was my headlamp. The Distance 1500 lit my way from sunset straight through to 3 a.m. with a luminous, undistorted beam that never once wavered in brightness.
I may not have been able to feel my feet. But I could see every landing so clearly that I could trust each step anyway. And when the battery did run out after 4 straight hours at near-max output, I could swap it out one-handed without wrestling the entire contraption off and back on my forehead. Compared to many other headlamps, this one had the perfect set of features for an ultramarathon.
In short: The Black Diamond Distance 1500 Headlamp includes plenty of customizable features to tailor the beam exactly how you want it. But once that’s done, you’ve got yourself a set-it-and-forget-it setup that eliminates whatever hassle could threaten to throw a sleep-deprived brain for a loop. Nothing feels easy in the final miles of an overnight ultramarathon — so Black Diamond designed a headlamp meant to be effortless.
Shopping for a headlamp? Read our full breakdown of the best headlamps.
- Lumen output: Up to 1,500 lumens
- Rechargeable: Yes, via USB-C or micro-USB
- Burn time: 40 hours on low
- Weight: 7.5 oz.
- Red light: Yes
- Rear light: Yes
- Waterproof rating: IP67
Black Diamond Distance 1500 Headlamp Review
Saving Time With Ease of Use


Staying Sane With 1,500 Lumens


Worth the Weight
Black Diamond Distance 1500 Headlamp: Final Thoughts
