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Compact blue headlamp with unibody polycarbonate and aluminum housing, integrated USB-C port, and adjustable headband

Nitecore

Nitecore NU31 550 Lumen Rechargeable Headlamp Blue

SKU CH-F4K5-J3YPJ

Lightweight 3.3 oz headlamp delivers 550 lumen output with 158-yard beam distance and IP66 water resistance

  • TypeHead Lamp
  • ColorBlue
  • 550 lumen Turbo beam reaches 158 yards for distance spotting
  • Triple output with white, high-CRI and red LEDs covers every task
  • Weighs only 3.3 oz for comfortable all-night wear
  • IP66 rated and USB-C recharge in 1.5 hours for rugged convenience
  • Up to 147 hours runtime on extra-low setting extends adventures

Compact 550 lumen headlamp for outdoor use

The Nitecore NU31 is a lightweight headlamp weighing 3.3 oz that delivers a maximum output of 550 lumens with a beam distance of 158 yards. It features a primary white LED with three brightness levels plus SOS and beacon modes. A high CRI auxiliary LED provides smooth flood illumination for close tasks, while a red auxiliary LED helps preserve night vision or serve as a signal light.

Suited for runners campers

This headlamp suits runners, campers and anyone needing hands-free light for extended periods thanks to its 147 hour maximum runtime on the lowest setting. The IP66 rating handles heavy rain and dust during outdoor activities. Buyers who require a headlamp that can also run on standard disposable batteries should look elsewhere as this model relies solely on its built-in rechargeable cell.

USB-C recharge in 1.5 hours decides readiness

The integrated USB-C port recharges the internal battery to full capacity in 1.5 hours, removing the need to carry spare cells. A power indicator shows remaining charge and a lockout mode prevents accidental activation in a pack. If your trips last longer than the 147 hour maximum runtime without access to a USB power source this headlamp will not cover the full duration.

Highlights

  • 550 lumen Turbo beam reaches 158 yards for distance spotting
  • Triple output with white, high-CRI and red LEDs covers every task
  • Weighs only 3.3 oz for comfortable all-night wear
  • IP66 rated and USB-C recharge in 1.5 hours for rugged convenience
  • Up to 147 hours runtime on extra-low setting extends adventures

Specifications

TypeHead Lamp
ColorBlue

Questions about this item

Which NU31 colour option should I pick for night running?

The blue model weighs 3.3 oz and includes a red auxiliary LED that preserves night vision, plus a high-CRI white flood for close tasks.

What does the 550 lumen rating deliver on the trail?

On Turbo the beam reaches 158 yards, giving a strong spot for route finding, while lower white levels extend runtime.

How fast does the USB-C port recharge the built-in battery?

A full charge takes 1.5 hours and then provides up to 147 hours on the lowest setting or 5 hours on high.

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