Best Headlamp for Ultra Running: Models for Long Night Races

• Petzl lists 1500 lumens and a 145 g weight.
• REACTIVE LIGHTING adjusts output and beam pattern to ambient light; the rear lamp provides red visibility.
• The rechargeable pack charges by USB-C and sits at the rear for balance.

Drawback: Its IPX4 rating is weather resistant rather than intended for immersion.

• Black Diamond lists 1500 lumens in PowerTap mode and 213 g weight.
• The magnetic battery pack is interchangeable, allowing a prepared spare to be swapped.
• Its product page specifies IP67 protection.

Drawback: At 213 g, it is heavier than the Petzl options in this list.

• Petzl lists 1200 lumens at a 92 g weight.
• Its REACTIVE LIGHTING mode automatically adjusts brightness and beam pattern.
• USB-C charging and a five-level battery gauge help with pre-race checks.

Drawback: Its IPX4 rating covers weather exposure, not submersion.

• Fenix specifies up to 1600 lumens and an included 18650 rechargeable battery.
• The lamp offers separate cool-white and warm-white sources, plus a SPORT headband adjustment dial.
• The maker lists up to 300 hours on the lowest mode.

Drawback: At 140 g including battery and headband, it is not as light as the Petzl SWIFT RL.