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  • Nitecore NU25 Triple Output USB Rechargeable Headlamp with Ultralight Headband
  • Nitecore NU25 Triple Output USB Rechargeable Headlamp with Wide Headband
  • Nitecore NU25 Triple Output USB Rechargeable Headlamp with Ultralight Headband
  • Nitecore NU25 Triple Output USB Rechargeable Headlamp with Wide Headband
  • Nitecore NU25 Triple Output USB Rechargeable Headlamp with Wide Headband
  • Nitecore NU25 Triple Output USB Rechargeable Headlamp with Wide Headband
  • UL headband colors
  • Nitecore NU25 UL Headband Only includes Mounting Bracket
  • Nitecore NU25 Triple Output USB Rechargeable Headlamp
  • Triple output, compact design, USB rechargeable
  • 360 lumen output, 266 ft (81 m) beam distance
  • 3 LED sources - main, red, auxiliary white
  • 100˚ wide-angle flood
  • Red light preserves night vision
  • High CRI auxiliary white light
  • High CRI for more vivid, natural color
  • Constant illumination without flickering - easier on your eyes
  • 4 brightness levels, 3 sources, 3 special modes
  • Specifications
  • Compact & Lightweight
  • 60˚ tilt
  • Ultralight design
  • Micro USB charging
  • Integrated battery equal to 3 AAA batteries
  • Over 500 recharge cycles
  • Rechargeable Li-ion battery is environmentally friendly
  • Fully functional while charging
  • Battery power indicator
  • Lockout to prevent turning on in pocket or pack
  • Fliexible printed circuit heat dissipation
  • IP66 Impact Resistant to 4.9 ft (1.5 m)
  • Silicon strip keeps sweat out of your eyes
  • Features

Nitecore® NU25 Triple Output USB Rechargeable Headlamp

    • 3 LEDs – Main, Aux White, Red
    • Brightness up to 360 lumens, runtime up to 160 hours
    • Main LED has 4 brightness levels + 2 rescue modes
    • Red LED preserves night vision
    • High CRI auxiliary white LED for more natural color
    • Integrated Li-ion micro-USB rechargeable battery
    • Plug into a power bank battery to recharge
    • Featherlight – 1.17 oz (33.0 g)
    • Exclusive UL headband


    Nitecore® NU25 is a triple output USB rechargeable headlamp. The main LED has four brightness levels up to 360 lumens and a runtime of up to 160 hours on low plus two rescue modes. A red LED preserves night vision and an auxiliary high CRI white LED is great for reading. With our exclusive UL headband it’s light as a feather at just 1.17 oz (33.0 g). And recharge by simply plugging into a power bank. A thru hiker favorite.

    NU25 has a micro-textured reflector providing 100˚ wide-angle flood illumination for outstanding night vision. The light tilts down up to 60˚ for reading or close-up work. The wide elastic headband is comfortable and highly adjustable to fit your head, hat, or helmet. Our optional UL headband reduces weight with full adjustability and functionality.


    In addition to the main light, NU25 also has two auxiliary lights – red and white. The red LED helps preserve night vision and won’t blind your friends. Use low during star gazing or night photography, high for gear organizing or doing camp chores, or caution for a repeated short red flash.

    The auxiliary white light uses a neutral white LED with high CRI ≥ 90 for more vivid, natural color and reduced eye strain. It’s great for short-range illumination, like reading a map. CRI (Color Rendering Index) is a measurement of how colors look under a light source as compared with sunlight. The index is measured from 0-100, with a perfect 100 indicating colors under the light source appear the same as they would under natural sunlight.


    The headlamp has two buttons – Power and Red (R). For low light, press Power once. Within 3 sec, repeatedly press Power to cycle from low>medium>high>off. Hold down Red to immediately turn off or after 3 sec, press either button to turn off. Alternatively, for medium, press Power twice, and for high press Power three times. Hold down Red to turn off. To enter turbo mode, with the light turned on in any mode, hold down Power for 1 sec, and hold down Red to turn off.

    You can also access two rescue modes, SOS and location beacon. SOS repeatedly flashes SOS in Morse code (. . . ––– . . .) The location beacon repeatedly flashes a single short flash. Hold down Power for 3 sec to enter SOS mode. Pressing Power within 3 sec again will change to beacon mode. After 3 sec, press either button to turn off.

    For auxiliary white, hold down Power to turn on and hold down Red to turn off. For auxiliary red, press Red once for low, then within 3 sec, repeatedly press Red to cycle from low>high>caution>off. Hold down Red to turn off.

    Press both buttons at the same time to lockout NU25 and prevent the light from turning on while in your pocket or pack. A red indicator blinks once to indicate lockout. Press both buttons again to reactivate the headlamp and enter low mode.

    LED Mode Output (lumens) Turn On Turn Off
    Main Low 1 Press POWER Once Hold down RED
    Medium 38 Press POWER Twice Hold down RED
    High 190 Press POWER Three Times Hold down RED
    Turbo 360 Light On, Hold down POWER 1 sec Hold down RED
    SOS 360 Hold down POWER 3 sec After 3 sec, Press Either
    Beacon 360 Hold down POWER 3 sec, Press Once After 3 sec, Press Either
    Auxiliary White - 20 From Off, Hold down POWER 1 sec Hold down RED
    Auxiliary Red Low 0.9 From Off, Press RED once Hold down RED
    High 13 From Low, Press RED once Hold down RED
    Caution 13 From High, Press RED once Hold down RED


    NU25 has a built-in, long-lasting 610 mAh Li-ion rechargeable battery that holds power equal to three AAA batteries yet is much more sustainable. An intelligent protective charging circuit and a Micro USB connection make it easy to recharge. Since you probably already carry a spare battery to charge your phone, there’s no need to worry about running out of power or replacing batteries, just plug into a power bank, wall charger, computer, or car (USB cable provided). The light maintains full functionality while charging.

    To see how much battery power is left, with the light turned off, hold down the Red switch for 1 sec and release. The button will flash 3 times if you have more than 50% power, 2 times if you’re below 50%, and 1 time if you’re below 10%. Plug it in and an indicator light lets you know when the charge is complete. It takes approximately 2 hours to fully charge the battery. A rubber cover protects the USB port from dirt and moisture.

    Charging State Indicator Light
    Charging Steady Red
    Charging Complete Steady Green




    LED Mode Output (lumens) Runtime (hours) Beam Distance ft (m) Beam Intensity (cd)
    Main Low 1 160 12.5 (3.8) 3.7
    Medium 38 8 89 (27) 190
    High 190 5 200 (61) 950
    Turbo 360 0.5 266 (81) 1650
    SOS 360 - - -
    Beacon 360 - - -
    Auxiliary White - 20 6.25 18 (5.5) 7.5
    Auxiliary Red Low 0.9 68 - -
    High 13 7.75 13.1 (4) 4
    Caution 13 13 - -


    Main LED: CREE XP-G2 S3 LED

    LED Color Temperature

       Main LED: 6300K, Cool White

       Auxiliary White LED: 4500K, Neutral White

    Color Rendering Index (CRI)

       Main LED: CRI ≥ 70

       Auxiliary White LED: High CRI ≥ 90

    Battery: Built-in rechargeable Li-ion, 610 mAh

    Lighting Modes

       Main LED: Low/Medium/High/Turbo/SOS/Beacon

       White Auxiliary: Medium

       Red Auxiliary: Low/High/Caution

    Beam Pattern: 100˚ wide-angle flood

    Body: Polycarbonate, impact resistant

    Tilt: 60˚

    Switch: Top Power and Red buttons, rubber

    Charging Connection: Micro USB, rubber cover (USB cable provided)

    Charging Time: 2 hours

    Dimensions, Light (LxWxH): 2.19 x 1.36 x 0.91 in. (55.5 x 34.6 x 23.2 mm)

    USB Cable Length: 3.3 ft (1 m)


       UL Headlamp Total1.17 oz (33.0 g) with built-in battery

       Wide Headlamp Total: 1.85 oz (52.5 g) with built-in battery

       Light with Mounting Bracket: 1.00 oz (28.3 g) with built-in battery

       UL Headband0.17 oz (4.8 g)

       Wide Headband: 0.85 oz (24.2 g)

       USB Cable: 0.79 oz (22.5 g)

    Impact Resistance: 4.9 ft (1.5 m)

    Ingress Protection Rating: IP66, complete dust protection and high-pressure water jet resistant


       1x Light with integrated USB rechargeable Li-ion battery

       1x Wide Headband, Black/White

       1x Micro USB to USB charging cable

       Optional: 1x UL Headband, choice of colors*

       *Nitecore packaging will be opened to install UL headband on mounting bracket prior to shipment. To use both UL and wide headbands, purchase an extra mounting bracket.


    User Manual

    Nitecore NU25 User Manual



    • Very bright light, to avoid eye injuries, DO NOT stare directly into the light and DO NOT shine the light directly into the eyes of others.
    • Keep away from children to avoid injury.
    • DO NOT use if battery is damaged to avoid fire or explosion.
    • Charge in or on a fire-proof surface to avoid possible injury. DO NOT charge unattended.
    • Charge only at temperatures between 32-113°F (0-45°C) to avoid permanent damage and possible fire or explosion during charging.
    • Recycle or dispose of properly according to local regulations at end of life, DO NOT dispose in fire or incinerator as battery may catch fire and explode.

    In no event shall Litesmith, LLC be liable for any direct, indirect, punitive, incidental, or special consequential damages, to property or life, whatsoever arising out of or connected with the use or misuse of its products.

    Write your own product review

    Showing reviews 1-10 of 81 | Next

    1. Sometimes a little is a lot.  star rating

      Posted by Mojosaki on 11th Apr 2021

      This is a fantastic little innovation that improves the standard design. The standard Nitecore headband is fine but this makes it great. The adjustable cord makes it slightly lighter, more comfortable, and more adjustable. The smaller footprint also does not promote sweating whereas the standard one does on my head.

    2. Great Little Light!!!!  star rating

      Posted by Unknown on 9th Apr 2021

      Super light weight and love the shock cord headband. It’s way more comfortable for me. The battery life seems to be great too. Love all the different light levels. Highly recommend.

    3. Quality headlamp, functional modification  star rating

      Posted by Finn on 28th Mar 2021

      I was initially concerned that I would be sacrificing comfort and functionality to save weight, but the strap replacement worked just as well as other headlamps I've used with stock bands, even when running.

    4. Excellent Lightweight Headlamp  star rating

      Posted by Terry H. on 19th Mar 2021

      I’m a runner. I often run at night and need to see and be seen. I also get caught in the rain at times. This headlamp checks all the boxes for me. Bright, adjustable, long-lasting charge, very lightweight, multiple light modes, and waterproof. I couldn’t be happier.

    5. Génial  star rating

      Posted by Unknown on 15th Mar 2021

      Légère, petite, fonctionnalité simple, un vrai petit jouet, c'est le top.

    6. Great Heatlamp & Ultralight Headband  star rating

      Posted by Kyle Waggener on 8th Mar 2021

      I've been backpacking for over 30 years and have had a number of different lights and this is my favorite by far. It has a lot of different light modes, is very bright and you can turn it off with one push of a button without cycling through the other light modes. I really like the features like the battery charged light, the charge level indicator and the button lock. The reason that I bought the Nitecore NU25 from Litesmith was because of the ultralight headband that comes with it. Why have a headband the doubles the weight of the light? It is so light that you can't hardly tell that you're wearing it. Also, my wife & daughter have the same light and it's easy for us to keep our headlamps separate because we all got different colored headbands.

    7. incredible  star rating

      Posted by Gray on 8th Mar 2021

      Purchased the UL headband and headlamp.

      Wasn't expecting it but it came with the original headband as well. Great!

      Got yellow and orange UL headbands (one for me and one for partner). Both are very neon/reflective and make it easy to find, which is nice bc the headlamp itself is black.

      When I ordered, I was a little worried about the comfort of the UL headband. BUT, I actually like the UL headband more than the original. I don't notice any difference in comfort, and it's easier to adjust than the standard strap.

      Weight is accurate to what's reported on litesmith. The charging cord is much longer than needed (unless you plan on hiking while charging it). I had a 0.5 ft. micro usb to usb-A charging cord lying around and it works fine, and is much lighter.

      Great features:
      - separate red/white buttons are great for not waking up your hiking buddy in the middle of the night
      - locking feature is awesome so you don't accidentally turn it on while it's in your pack. NOTE: charging a locked headlamp actually "unlocks" the lamp, meaning that the buttons will work again. Make sure you re-lock after charging if you're liable to turn it on accidentally while it's packed
      - you can check how much battery is left. Sweet!

      Brightness is great. Multiple levels of brightness ranging from 1 lumen up to 360 lumen. The second lowest brightness level is perfect for night hiking in my opinion. The brighter options are BRIGHT. the buttons are set up in a way that you don't have to cycle over all brightness levels when you want to power off.

      Couldn't recommend this more. So bright, so light, no frills but great features.

    8. Superb  star rating

      Posted by todd on 6th Mar 2021

      This is like my 6th-7th headlamp in a decade. Some I lose and others I just don't like. This is a keeper. I can't think of anything to criticize. I love that the first on state is dimmest (unless you hold for turbo), so you don't blind yourself or others just to be able to see your shoes or whatever. I love that the dimmest is really dim and will last super long. I love that there is an alternate high-CRI flood for nice soft task lighting. Red is gravy. Super light and compact. Has lockout feature.

    9. UL Headband.  star rating

      Posted by Ranger on 21st Feb 2021

      Super light and holds very well. You will forget you are wearing the headlamp.

    10. A truly great product  star rating

      Posted by Tris Utschig on 12th Feb 2021

      I was able to put the Nu25 headlamp to use the day after it arrived (so glad it came on time exactly as expected) and it made my winter backpacking overnight immeasurably better than it would have been with any other light source I have used in the past. The gram weenie UL cord is so light it's hard to tell it's there and adjusts to fit over a headband or under a baseball style cap in moments. The bracket for angling the lamp works smoothly and is very stable. And, finally, the various lighting options were a huge benefit depending on wether I needed general lighting organizing my gear in the tent, directed light for reading, or bright light when I needed to go out looking for rocks to hold down my tent stakes from the heavy snow falling on my tent. I couldn't be more pleased.

    Showing reviews 1-10 of 81 | Next

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