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  • Nitecore® NU20 USB Rechargeable Headlamp with UL headband
  • Nitecore® NU20 USB Rechargeable Headlamp with wide headband
  • Nitecore® NU20 USB Rechargeable Headlamp
  • Tilts down up to 52˚
  • Micro USB rechargeable
  • Nitecore® NU20 USB Rechargeable Headlamp
  • UL Headband Colors
  • Nitecore® NU20 UL Headband Only includes Mounting Bracket
  • Nitecore® NU20 USB Rechargeable Headlamp
  • Lightweight rechargeable headlamp
  • 4 Brightness Levels + 2 Rescue Modes
  • 100˚ wide-angle flood illumination
  • Constant current means no dizziness with prolonged use
  • Specifications
  • Micro USB rechargeable
  • Built-in Li-ion battery holds power equal to 3 AAA batteries
  • Over 500 charge-discharge cycles
  • Fully functional while charging
  • Built-in battery level indicator
  • Switch guard prevents accidentally turning on in your pack or pocket
  • Impact resistant to 1.5 m, waterproof to IPX7
  • Ultralight Frame
  • Adjustable headband
  • Features

Nitecore® NU20 USB Rechargeable Headlamp

    • Brightness up to 360 lumens, runtime up to 100 hours
    • 4 brightness levels + 2 rescue modes
    • Built-in, long-lasting Li-ion micro-USB rechargeable battery
    • Charge in the wild or on the go with a power bank battery
    • Compact & lightweight – 1.16 oz (32.9 g)
    • Exclusive UL headband


    Nitecore® NU20 is a USB rechargeable headlamp with four brightness levels up to a bold 360 lumens plus two rescue modes and a runtime of up to 100 hours. It’s compact and lightweight at just 1.16 oz (32.9 g) with our exclusive UL headband, perfect for backpacking. Never worry about running out of juice or replacing batteries, just plug into a power bank battery to recharge.

    NU20 has a micro-textured reflector providing 100˚ wide-angle flood illumination for outstanding night vision. The light tilts down up to 52˚ for reading or close-up work. And a switch guard prevents the light from accidentally turning on in your pack or pocket. 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.

    single button operates all functions for convenient one-handed control. The interface is quite simple. For low light, press once, wait 3 sec, then press again to turn off. For medium light, press twice, wait 3 sec, then press once to turn off. For high brightness, press three times, wait 3 sec, then press again to turn off. Alternatively, you can cycle from low>medium>high by pressing the switch repeatedly within 3 sec. To enter turbo mode, with the light turned on in any mode, hold the switch down for 1 sec, and press once to turn off.

    You can also access two rescue modes, SOS and location beacon. SOS repeatedly flashes SOS in Morse code (. . . ––– . . .), while location beacon repeatedly flashes a single short flash. With the light turned off, press and hold the switch for 3 sec to enter SOS mode. Pressing the switch within 3 sec again will change to beacon mode. Press once to turn off.  

    Mode Output (lumens)
    Turn On Turn Off
    Low 1 Press Once Wait 3 sec, Press Once
    Medium 40 Press Twice Wait 3 sec, Press Once
    High 220 Press Three Times Wait 3 sec, Press Once
    Turbo 360 Light On, Press and Hold 1 sec Press Once
    SOS 360 Press and Hold 3 sec Press Once
    Beacon 360 Press and Hold 3 sec, Press Once Press Once


    NU20 has a built-in, long-lasting 600 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 switch for 1 sec and release. The switch 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




    Mode Output (lumens) Runtime (hours)
    Low 1 100
    Medium 40 7.75
    High 220 6
    Turbo 360 0.5
    SOS 360
    Beacon 360



    LED Color TemperatureCool White, 6300K

    Color Rendering Index (CRI)CRI ≥70

    Beam Distance262 ft (80 m)

    Peak Beam Intensity1600 cd

    Battery: Built-in 600 mAh rechargeable Li-ion

    Lighting Modes: Low/Medium/High/Turbo/SOS/Beacon

    Beam Pattern: 100˚ wide-angle flood

    Body: Polycarbonate, impact resistant

    Tilt: 52˚

    Switch: Top button, rubber

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

    Charging Time: 2 hours

    Dimensions, Light (LxWxH): 2.19 x 1.25 x 0.84 in. (55.5 x 31.7 x 21.2 mm)

    USB Cable Length: 3.3 ft (1 m)


       UL Headlamp Total: 1.16 oz (32.9 g) with built-in battery

       Wide Headlamp Total: 1.82 oz (51.7 g) with built-in battery

       Light with Mounting Bracket: 0.99 oz (28.1 g) with built-in battery

       UL Headband: 0.17 oz (4.8 g)

       Wide Headband: 0.83 oz (23.6 g)

       USB Cable: 0.77 oz (21.9 g)

    Impact Resistance: 4.9 ft (1.5 m)

    Waterproof Rating: IPX7, waterproof and submersible to 3.3 ft (1 m)


       1x Light with integrated USB rechargeable Li-ion battery

       1x Wide Headband, Black/Yellow

       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 NU20 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

    Previous | Showing reviews 21-22 of 22

    1. Fantastic UL Headlamp  star rating

      Posted by Marty Elliott on 10th Jul 2017

      Received this in the mail TWO DAYS after I ordered. Comparing it to my Petzl at 1.1 oz with spare batteries, this weighed 1.1 oz with UL shock cord. Trimming some excess cord, final weight was 1 oz. Plus the amount of light this puts out blows the Petzl away. A lot more one handed user friendly too. No more spare batteries, lighter weight and more lumens. Great product!

    2. Best ultralight headlamp there is  star rating

      Posted by Kathy on 30th Jun 2017

      I can't say enough about this headlamp. It ticks all the boxes....
      1. Super easy to use - no unecessary complications
      2. Rechargeable - no additional cost for batteries, no need to bring extra batteries, and more environmentally friendly.
      3. Super ultralight - barely over an ounce for the UL headband model. Don't even give this a thought....get the UL headband model.
      4. Low setting is adequate for most situations, bright setting is super bright and more than what you will need!

      If you are on the fence on this one, trust me, you will not regret getting this.

    Previous | Showing reviews 21-22 of 22

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