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Grey Nitecore NU31 headlamp with unibody lens, USB-C port and headband

Nitecore

Nitecore NU31 550 Lumen Rechargeable Headlamp Grey

SKU CH-H5KP-09FMZ

Lightweight 3.3 oz headlamp delivers 550 lumens to 158 yards with IP66 water resistance and USB-C charging in 1.5 hours for up to 147 hours runtime

  • TypeHead Lamp
  • ColorGrey
  • 550 lumen Turbo beam reaches 158 yards
  • Weighs only 3.3 oz for comfortable all-night wear
  • Triple LED system: white, high-CRI flood and red for night vision
  • IP66 water-resistant unibody handles rain and splashes
  • USB-C recharge gives 147-hour runtime from 1.5-hour charge

Nitecore NU31 550 lumen headlamp

The Nitecore NU31 is a lightweight rechargeable headlamp weighing 3.3 oz and delivering up to 550 lumen with a 158 yard beam distance. It suits runners, campers and hikers who need hands-free illumination for extended periods. The grey polycarbonate and aluminium body is rated IP66 water resistant for wet conditions.

USB-C charging and simple controls

A built-in USB-C port recharges the battery to full in 1.5 hours, providing up to 147 hours of runtime on the lowest setting. The primary white LED offers three outputs plus SOS and beacon modes, while auxiliary high CRI and red LEDs cover close work and night vision. Lockout mode prevents accidental activation inside a pack.

Check headband fit and charging access

Verify the included headband adjusts comfortably over your helmet or hat before ordering. Ensure you have a USB-C power source available for recharging in the field. Buyers needing replaceable cells or a magnetic tailcap for metal mounting should consider other models.

Highlights

  • 550 lumen Turbo beam reaches 158 yards
  • Weighs only 3.3 oz for comfortable all-night wear
  • Triple LED system: white, high-CRI flood and red for night vision
  • IP66 water-resistant unibody handles rain and splashes
  • USB-C recharge gives 147-hour runtime from 1.5-hour charge

Specifications

TypeHead Lamp
ColorGrey

Questions about this item

How can I confirm the headlamp is working correctly after charging?

The built-in power indicator shows battery status, and you can cycle through the three white outputs, SOS, beacon, high-CRI auxiliary, and red auxiliary modes to verify each LED functions.

What accessories come with the NU31 and what must I purchase separately?

The box includes the NU31 headlamp, a USB-C charging cable, and a headband; no additional items are required for basic operation.

Which output mode should I choose for maximum brightness versus longest runtime?

Turbo delivers 550 lumens with a 158-yard beam for up to 5 hours, while the extra-low setting runs for up to 147 hours.

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