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A few words for Nitecore NU20 CRI :
The Nitecore NU20 CRI is an incredibly compact, lightweight headlamp designed for movers and shakers. This tiny headlamp comes equipped with a Nichia 219B high CRI (>90) LED that produces a bright 270 lumen beam with a throw of 75 yards. LEDs with a high CRI or color rendering index are able to reproduce colors more naturally and highlights subtle detail. Long wear is made less strenuous with the compact design, weighing only 1.66 ounces which includes the built-in battery. Conveniently recharge via the built-in micro USB port and included USB cable and be good to go for up to 6 hours at 170 lumens. The NU20 CRI is ideal for runners or anyone who wants to grab and go!
Overview/Specifications :
First Look :
Flashlight in it’s box :
Package Contains :
- Headlamp & it’s headband
- User manual in English & chinese
- USB cable
A closer look :
You can see the “front” side of the flashlight , with the e-switch visible .
- Flashlight is made out of poly-carbonate material . Seems to be high quality and durable .
It has a yellow adjustable headband , made out of a flexible material . It can fit on a safety helmet too .
- It is ultra lightweight . Weighs only 51gr with the headband .
It has a slightly OP reflector , and this CRI model uses a Nichia 219B 90+ CRI led . You can notice the AR coated lens too .
- Reflector’s diameter is around 11.5mm . Led is well centered too .
On the top side there is the electronic switch :
And bottom side with the charging port . It has a waterproof cover .
- Charging port is used to charge the integrated 600mAh battery .
With the stock USB cable inserted :
On the sides , you can see the mechanism to adjust the tilt of the flashlight .
- Tilt can be up to 52 degrees .
It has also this tab , to cover the e-switch , mainly to avoid accidental activation when it is stored in a bag for example .
How it works (&modes) :
From off , press the switch to turn the light on at low mode. If you want to change level, you must press it again within 3-4 seconds the switch, cycling to medium and high mode.
If you press the switch after the light has been on a particular mode for 3-4 seconds, the light will turn off.
When the light is already switched on, a longer press (1-1.5s) of the switch will activate turbo mode.
Hidden Modes: When the flashlight is off, press and hold the switch for more than 3s to activate strobe. Further click activates Strobe – SOS – Aviation signal in a circle. Long press the switch to turn off .
Battery Indicator :
From off , a long click (1-1.5s) on the flashlight’s e-switch will blink the e-switch’s led indicator according to the battery capacity .
- 3 times >50%
- 2 times
- 1 time
Usb Charging :
When the battery is being charged, lED indicator will be red :
After being fully charged, led will be green :
Charging Current : Coming soon…
Edit : As RollerBoySE mentioned , flashlight works regularly when it’s charging .
Measurements :
Lumens :
- Low – 2 lumens
- Medium – 29 lumens
- High – 163 lumens
- Turbo – 274 lumens
My test , with thermal data :
Turbo mode :
Medium mode provides a runtime up to 7 hours of steady output !
Intensity :
NU20 cri : 1300cd
Beamshots :
Wall @ 4.5m :
Turbo :
High :
Conclusion :
Pros :
- Nice tint : ~5000-5200K & high cri
- Ultra lightweight : only 51gr with the headband
- Small size
- Good throw and spill balance
- High quality materials
What i would like :
- Another ~80-100lm mode with steady output from the first seconds
- Switch shortcut to High/Turbo
Overall , a really nice light . Recommended for users that don’t target a headlamp with lots of lumens .
= = =
Comment if you want me to check something on the flashlight , or tell your opinion . Thanks !
Flashlight was provided for review purposes by fasttech (for a better price) . Check out the light here : https://www.fasttech.com/products/0/10011686/6937900-authentic-nitecore-... .
- George
My Reviews : KDlight C8 / ThruNite Archer 1A V3 / Thorfire C8s / ThruNite TN12 (2016) / Utorch UT01 / Utorch UT02 / Jetbeam WL-S2 (xp-l) / ThruNite TC12 V2 / Massdrop Brass AAA / Manker LAD / Lumintop SD26 / ThruNite Mini TN30 (3x xm-l2) / Qualilite D81 / Nitecore MH20GT / Odepro TM30 / Klarus XT30R / Nitecore NU20 CRI / Ultrafire XM-L2 / Foursevens Mini MK II / Manker E02 / Manker E14 II / Teekland Flashlights / Lumintop Elfin / Thorfire S70S / ThruNite Neutron 2C / Jaxman M8 / KDLITKER C8.2 / Zanflare F1 / Nitecore Concept 1 / Emisar D4 / Astrolux MF-01 / ThruNite TC10 V3 / Amutorch JM70 (xpl hi)
Thanks for the review!
It might also be worth mentioning that it’s possible to use the light while charging. Which means virtually unlimited runtime with a power bank of your choice.
“My collection”: https://budgetlightforum.com/comment/700139#comment-700139
You’re right
Thanks for mentioning it (added it on the review , with credits
)
- George
My Reviews : KDlight C8 / ThruNite Archer 1A V3 / Thorfire C8s / ThruNite TN12 (2016) / Utorch UT01 / Utorch UT02 / Jetbeam WL-S2 (xp-l) / ThruNite TC12 V2 / Massdrop Brass AAA / Manker LAD / Lumintop SD26 / ThruNite Mini TN30 (3x xm-l2) / Qualilite D81 / Nitecore MH20GT / Odepro TM30 / Klarus XT30R / Nitecore NU20 CRI / Ultrafire XM-L2 / Foursevens Mini MK II / Manker E02 / Manker E14 II / Teekland Flashlights / Lumintop Elfin / Thorfire S70S / ThruNite Neutron 2C / Jaxman M8 / KDLITKER C8.2 / Zanflare F1 / Nitecore Concept 1 / Emisar D4 / Astrolux MF-01 / ThruNite TC10 V3 / Amutorch JM70 (xpl hi)
Looks nice. Any idea what kind of cell is in it? Could it be replaced without destroying the lamp?
I would imagine tgis to have some sort of flat lipo cell in it. Its pretty thin, and in order to get 600mAh in there it needs to be a thin battery.
The Eneloop 2005-2022 info thread
I’m pretty sure it has a li-ion inside . CRX did a tear down here : http://budgetlightforum.com/node/52638
- George
My Reviews : KDlight C8 / ThruNite Archer 1A V3 / Thorfire C8s / ThruNite TN12 (2016) / Utorch UT01 / Utorch UT02 / Jetbeam WL-S2 (xp-l) / ThruNite TC12 V2 / Massdrop Brass AAA / Manker LAD / Lumintop SD26 / ThruNite Mini TN30 (3x xm-l2) / Qualilite D81 / Nitecore MH20GT / Odepro TM30 / Klarus XT30R / Nitecore NU20 CRI / Ultrafire XM-L2 / Foursevens Mini MK II / Manker E02 / Manker E14 II / Teekland Flashlights / Lumintop Elfin / Thorfire S70S / ThruNite Neutron 2C / Jaxman M8 / KDLITKER C8.2 / Zanflare F1 / Nitecore Concept 1 / Emisar D4 / Astrolux MF-01 / ThruNite TC10 V3 / Amutorch JM70 (xpl hi)
Isnt that a lipo cell?
The Eneloop 2005-2022 info thread
I see a 3.7V mark , i can only guess it’s a li-ion . I think lipo cells charge to 3.2V .
- George
My Reviews : KDlight C8 / ThruNite Archer 1A V3 / Thorfire C8s / ThruNite TN12 (2016) / Utorch UT01 / Utorch UT02 / Jetbeam WL-S2 (xp-l) / ThruNite TC12 V2 / Massdrop Brass AAA / Manker LAD / Lumintop SD26 / ThruNite Mini TN30 (3x xm-l2) / Qualilite D81 / Nitecore MH20GT / Odepro TM30 / Klarus XT30R / Nitecore NU20 CRI / Ultrafire XM-L2 / Foursevens Mini MK II / Manker E02 / Manker E14 II / Teekland Flashlights / Lumintop Elfin / Thorfire S70S / ThruNite Neutron 2C / Jaxman M8 / KDLITKER C8.2 / Zanflare F1 / Nitecore Concept 1 / Emisar D4 / Astrolux MF-01 / ThruNite TC10 V3 / Amutorch JM70 (xpl hi)
https://scottiestech.info/2015/06/21/lithium-polymer-vs-lithium-ion-batt...
“My collection”: https://budgetlightforum.com/comment/700139#comment-700139
It is possible
- George
My Reviews : KDlight C8 / ThruNite Archer 1A V3 / Thorfire C8s / ThruNite TN12 (2016) / Utorch UT01 / Utorch UT02 / Jetbeam WL-S2 (xp-l) / ThruNite TC12 V2 / Massdrop Brass AAA / Manker LAD / Lumintop SD26 / ThruNite Mini TN30 (3x xm-l2) / Qualilite D81 / Nitecore MH20GT / Odepro TM30 / Klarus XT30R / Nitecore NU20 CRI / Ultrafire XM-L2 / Foursevens Mini MK II / Manker E02 / Manker E14 II / Teekland Flashlights / Lumintop Elfin / Thorfire S70S / ThruNite Neutron 2C / Jaxman M8 / KDLITKER C8.2 / Zanflare F1 / Nitecore Concept 1 / Emisar D4 / Astrolux MF-01 / ThruNite TC10 V3 / Amutorch JM70 (xpl hi)
Maybe 2-4 years depending on use.
The battery could be replaced fairly easily if you can use a soldering iron.
Thanks for the review
- LEDs & Other Stuff - - UI CheatSheets - - CRX Flashlight Builds - - CRX Stuff for Sale -
Yeah, they’re cool little lights, best to go with the CRI version.
If you’re not going to use it for a while store it at around 2 flashes to prolong cell life expectancy.
- LEDs & Other Stuff - - UI CheatSheets - - CRX Flashlight Builds - - CRX Stuff for Sale -
Sweet light, thanks George.
₪₪₪₪ ΟΥΔΕΝ ΚΡΥΠΤΟΝ ΥΠΟ ΤΟΝ ΗΛΙΟ ₪₪₪₪
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Flashlights & edc gear
K40M F16
Thanks for the review. I have one on its way for review, and intend to see how it goes for night running. Looking forward to the Nichia goodness!
Recent Reviews: Best Flashlights for Light Painting Photography 2022 // Battery and Charger Buying Guide 2022 // Olight Array 2S Headlamp // Acebeam E70-AL CRI95+ // XTAR VC4SL Charger // Sofirn D25LR Headlamp // Convoy T4,S21D,M3-C // Sofirn IF22A // Ants on a melon RGB Critter
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It’s tint is one of my favourites , not really warm , perfect !
Thanks for your kind words
- George
My Reviews : KDlight C8 / ThruNite Archer 1A V3 / Thorfire C8s / ThruNite TN12 (2016) / Utorch UT01 / Utorch UT02 / Jetbeam WL-S2 (xp-l) / ThruNite TC12 V2 / Massdrop Brass AAA / Manker LAD / Lumintop SD26 / ThruNite Mini TN30 (3x xm-l2) / Qualilite D81 / Nitecore MH20GT / Odepro TM30 / Klarus XT30R / Nitecore NU20 CRI / Ultrafire XM-L2 / Foursevens Mini MK II / Manker E02 / Manker E14 II / Teekland Flashlights / Lumintop Elfin / Thorfire S70S / ThruNite Neutron 2C / Jaxman M8 / KDLITKER C8.2 / Zanflare F1 / Nitecore Concept 1 / Emisar D4 / Astrolux MF-01 / ThruNite TC10 V3 / Amutorch JM70 (xpl hi)
Thank you George. Very nice review as always!
Thanks for the info & the nice review Giorgos!
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