Category
Lighting & Gear
Choosing and Running a Caving Headlamp: Lumens, Runtime, and Backups
A caving headlamp lives a harder life than any headlamp you've owned for hiking. Here's what actually matters when you're picking one, and why every serious caver carries a second light.
Headlamp Runtime, and Why You Carry Three Light Sources
Manufacturer runtime numbers rarely survive contact with a cold, hard-used caving trip. Here's the actual formula behind a real runtime estimate — worked for a primary, a backup, and a third light — and why serious cavers carry all three.