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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 69 | Next

    1. Solid, Functions Well, Cuts Grams  star rating

      Posted by Unknown on 18th Jan 2021

      Very happy with my purchase. I was a little worried at how it would feel during wearing but it's just fine. Light is solid and the red light is pretty strong. Would recommend.

    2. Wish I found this before my previous headlamp  star rating

      Posted by Adam D on 9th Jan 2021

      All I can say is wow, most user-friendly, affordable and lightest of the ultralight headlamp on the market. Not fumbling through one button for light modes in the dark and blinding myself/others is a lifesaver.

    3. Gamechanger  star rating

      Posted by William McCaffrey on 8th Jan 2021

      This is my favorite headlamp I’ve ever owned. It’s so light I forget it’s ever in my pack. I now carry it on both day and overnight hikes as a safety backup. I use it almost every day this time of year because I pick herbs and spicy peppers from my garden when it’s dark to cook dinner with. In this at home scenario the battery last for 3-4 months before it needs to be charged again. I love that it’s USB rechargeable since I always carry a backup battery with me into the backcountry. My hobby is photography so the backup battery is inevitable. I love that if it runs out of juice it can be recharged in a few hours. I recently bought a second one for my girlfriend.

    4. The only option for this headlamp  star rating

      Posted by Dan on 19th Dec 2020

      The updated bracket and cord headband is the ONLY way to use this headlamp. The NU25 is a great headlamp and this update makes it that much better. I honestly forget I'm wearing it half the time once it's turned off and I'm still active. I don't typically review purchases online but for this I'm making an exception. Don't even hesitate, this is the one.

    5. Great light. Buy the UL headband also  star rating

      Posted by Shelley Chacon on 29th Nov 2020

      1. ditto what Randy S said on 11-20-2020
      2. Buy the UL headband! Comfortable and totally worth it. (you could do yourself but not worth the effort for the cheap price charged!)
      3. Very light weight given intensity. Best light out there in my opinion.
      4. Also liked better than the Petzl Bindi (similar specs) as didn’t strain my eyes (watched a video where backpacker was reviewing both and the Petzl wouldn’t photograph as “dims” by turning off and on at high frequency and the Nitecore photographed fine so ACTUALLY dimmed. Not sure if this explains my eyestrain or not but like Nitecore better).

    6. Form and Function  star rating

      Posted by Randy S on 20th Nov 2020

      If you're on a Hiking trail and away from city lighting, you will probably be able to navigate at the lowest light setting, which is very low and offers very long battery usage time. The low Red setting is great if you have to find something in your tent without disturbing your partner from light. The high white setting lit up my backyard and will be good if you have car trouble and you need to see well, that setting is only 30 minutes though. Most everything you need to do around camp can be done at the mid setting. This light is small, and 1.1oz. and will sit in your jacket pocket without it feeling it is present. As with anything Lithium, do not charge it in the low 30’s or below, put it inside your jacket and let it warm up if charging off a power pack. This light is a good choice for a Thru Hike.

    7. So Good!  star rating

      Posted by Noah Keathley on 16th Nov 2020

      This headlamp and strap are so good, with so many different settings you can use your light in whichever scenario you need, and the UL headband is very light and comfortable!

    8. excellent lightweight head strap  star rating

      Posted by L Land on 11th Nov 2020

      This nitecore headlamp is the current gold standard for lightweight hiking headlamps and the lightweight strap shaves even more grams. It is an excellent product.

    9. Big step up  star rating

      Posted by G on 14th Sep 2020

      This is a really great lamp - powerful white and red lights, each with three easy to use brightness levels. Unlike my other (black diamond) light, the red has enough power for walking around camp even when it's not fully dark yet. Also much easier to use than the controls on the BD light.

      I can't recommend this enough. If you're using an older light and want the latest tech, you won't be disappointed with this. And as a bonus it's super light weight.

    10. Lighter than air  star rating

      Posted by Unknown on 8th Sep 2020

      Weighing in at one ounce, this is a remarkably light headlamp. It's fully featured with differing levels of white or red light, and its USB rechargeable. The shock cord looks cool, saves more weight and you can choose your favorite color. It's the envy of my hiking buddies. Get one today!

    Showing reviews 1-10 of 69 | Next

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