Nitecore NU43 Rechargeable Headlamp - The Worlds Lightest 18650 Battery Headlamp

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Comes With
Manual and Warranty info
USB-C charging cable
Built-in 3,400mAh 18650 Li-ion Battery
Key Features
Ultra-lightweight for a headlamp with an 18650 battery
Has two LEDs (spot and flood) that work together to create a clearer, more integrated light
Ultra-low standby power consumption
Rotating cover for the USB-C charging port
Elasticized, perforated headband with reflective accents
equipped with a proximity sensor which automatically decreases the output when an obstacle is found in front of the lens. This prevents overheating
 
Physical Specs
Materials Polycarbonate and aluminum
Dimensions 3.14" x 1.81" x 1.73” / 79.8mm x 46.1mm x 43.9mm
Weight 4.09 oz / 116 g
Water resistance IP68
Drop resistance 2 meters

Performance Specs
Turbo 1400 lm (not listed) 130 meters / 3800 cd
High 600 lm 10 hours 77 meters
Mid 300 lm 15 hours 53 meters
Low 100lm 29 hours 30 meters
Ultralow 8lm 165 hours 8 meters
Strobe 1400 lm (not listed)
SOS 1400 lm (not listed)
Red Light
On/Flash 10 lm 66/90 hours 5 meters
A full charge takes approximately 2 hours

 
Operation
Long press the Power button to turn the white light on.
With the light on, short press the power button to cycle between low, medium, and high
Long press the Power button to turn the light off
With light off, double press the Power button to access ultra-low
With the light on, double press the Power button to access turbo
With the light off, long press the Mode button to access the red light
With the light on, short press the Mode button to access the red light
With the red light on, short press the Power button to toggle between constant on or beacon
While light is off, short press the Mode button to find battery status (4 blue LEDs)
Double press the Mode button while the light is off to activate SOS or Beacon. Toggle between by pressing the Power button
To activate the electronic lockout long press both buttons while light is off (will flash 3 times). To de-activate the lockout, long press both buttons until light turns on
Can also rotate the light up to block the power button

[elliowb]

Thanks for a great review. I have this headlamp and have found that my favorite feature is that it has such an even beam across my field of vision. This even beam makes it a great headlamp for doing work around the house or on my boat where I need extra light.

[neonsamurai]

Pity it is a built-in battery that I do not believe can be replaced. I am kind of tired of makers using built-in's or custom replaceable batteries/packs. Personally rather than carry a power pack I carry a couple to several batteries of the same type (generally 18650) in plastic battery holders, on a trip, that I can use in my headlamp, flashlight, and/or lantern. It gives me a lot of flexibility as I am not draining down specific devices, just the individual batteries. Plus I am not a fan of sending otherwise working devices to the garbage because the built-in battery is dead.
Cheers for the review all the same.

[billb]

10:00 I got excited until you said that the battery cannot be removed.
Engineer POV: Removable batteries should be _required, _ IMO.
Otherwise, when the rechargeable fades or fails (like when stored with full or empty battery), you have to throw out the entire light.
18650's are a top choice for energy density +1. Non-Removable: -1000.

[BillegendFishingChannel]

You helped me really lot kbowing the features of light (low med high) without searching on manual!! Really very helpful review! I bought a 18650 battery extra, can i open where nu43 charging to change battery?? Or i cannot change battery? Tyvm!

[massimoromano]

Does your headlamp overheat and switch to mid or low mode when on 600 lumen? Mine if it has less than 50% of battery...tends to overheat and switch to lower illumination mode

[eyeofthetiger]

G'day Mark, fully featured all right. I reckon the interface will be too complicated for many, but I find with these types of configurations, when you get some hours up you get used to them.
Yep weight is good, in direct comparison, my go to 18650 job, Fenix HM65R-T, weighs 142 g / 5 oz, including battery and strap, so that is a significant difference.
Proximity; perhaps going in with good intentions but not sure I'd cope with it, lol.
Nearly spat out my coffee when you mentioned non-replaceable battery, sure didn't see that one coming; though in hindsight the charging port location is a bit of a give away. Cheers Duke.

[footjesuspilledpureblood]

This product makes no sense, most 18650 users use these batteries ONLY use them because you can swap them out in the field.

[geoff]

Super review--concise, yet comprehensive. Thanks!

[DrDennis]

I prefer the Fenix Trail Runner spot/flood running a 18650 rech C. 1500 lumens with both on. Adj. head strap. Lightweight aluminum alloy body.

[Limicola]

Nice review. Question: does it remember the red mode? As for your link, it does not go directly to the light. I have a couple Nitecore NU25 360 headlamps which I really like. Very lightweight and compact. I also have a Nitecore powerbank which is very handy and compact.

[terryw.milburn]

Good Looking & Performing Light, Thanks For This Mark ! ATB T God Bless

[davidadams]

The two cons, you mention: Unless they've done a better job than Olight, proximity sensor's a nuisance. Perun 2 turns off, in heavy rain or snow. No battery access =built in redundancy - not good.

[youtube]

hey Mr.Y, when you say the user cant really access the 18650, do you mean to say not at all, realistically even at home with a toolkit, or just that its not a simple in and out like with most AAs ?

[MichaelR]

Good review Mark , thanks for sharing , God bless !