400 Lumens Ultralight Rechargeable Headlamp

Max Output: 400 Lumens
Max Beam Distance: 64 m
Max Beam Intensity: 1029 cd
Max Runtime: 45 h 0 m / 1.87 d
Battery: Built-in 650mAh Li-ion Battery
Special Modes: Location Beacon, SOS
Beam Color: White Light, Red Light
Dimensions: 60.1mm x 33mm x 25.5mm (2.37″ x 1.3″ x 1″)
Weight: 45 g / 1.59 oz
Feature: Rechargeable, Triple Output
Activity: Outdoor/Camping, Trail Running
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  • Dual-beam USB-C rechargeable headlamp
  • Specially designed for outdoor activities
  • Equipped with spotlight + floodlight (colour temperature: 5500k) and red-light illumination
  • With a max output of 400 lumens
  • Utilizes a unibody optical lens system with various facets for reflecting uniform and soft light
  • Max peak beam intensity of 1,029cd and max throw of 64 meters
  • Built-in 650mAh Li-ion rechargeable battery
  • A highly efficient constant current circuit provides a stable output with a max runtime of 45 hours
  • Designed with two buttons different in shape and touch, offering easy one-handed operation
  • 4 brightness levels, 3 light sources and 3 special modes are available
  • Built-in intelligent Li-ion battery charging circuit with a USB-C charging port 
  • Designed with 4 power indicators to indicate the remaining battery power
  • Made from durable PC material
  • Waterproof and dustproof rating in accordance with IP66
  • Impact resistant to 1 meter


  • 1 x Nitecore NU25 400L Headlamp (Black)
  • 1 x Headband
  • 1 x Type-C USB Charging Cable
  • 1 x User Manual 
  • 1 x Warranty Card

The NU25 is back lighter and more powerful than before with a dual beam spotlight and floodlight for a combined 400-lumen max that can reach out to 70 yards. Equipped with an upgraded unibody optical lens system switch freely between a primary spot LED, offering three brightness settings, to the flood LED for even wide illumination, ideal for close-up tasks and reading. Alternatively, switch to the dual red auxiliary LEDs and protect your night vision or long-lasting signal light. The NU25 is rated IP66 water resistant, features a bold new aerodynamic unibody design that efficiently dissipates heat and looks stylish to boot.

The NU25 has a built-in 650mAh rechargeable battery that can achieve a maximum runtime of 45 hours on its lowest setting. Now with an integrated USB-C port the NU25 fast charges to full in only one and a half hours. A power indicator tells you when it’s time to charge while lockout mode prevents accidental activation. The intuitive dual-button interface puts the controls right at your fingertips, so you have more time to enjoy the surroundings.

The NU25 UL is the lightest headlamp, at only 1.59 ounces, optimized for the most dedicated outdoor enthusiast that takes carrying weight very seriously. The dual-band design evenly distributes the weight with a very simple cinching mechanism to control the tightness for user comfort. The multithreaded cord has highly reflective bands for enhanced visibility, as well as glow-in-the-dark bands for visibility without ambient light.