Nitecore NU43 headlamp review

2 x Luminus SST20 LEDs, 1 x unspecified red LED
1400 lm output
3800 cd intensity
integrated 3400mAh Li-Ion battery

The Nitecore NU43 headlamp was released in 2022. It uses 2 x Luminus SST20 LEDs, 1 x unspecified red LED, TIR reflector and integrated 3400mAh Li-Ion battery. The powerful emitter in this headlamp provides up to 1400 lm output, 3800 cd intensity, and a beam distance of 123 m.

Excited to find out if this Nitecore headlamp is worth it? Keep scrolling!

Table of Contents

  • Nitecore NU43 specifications
    • Body, materials, weight, colors
    • System, LED, lens, reflector
    • Performance, flux, intensity, throw
    • Software, user interface, modes
    • Features, battery, protections
    • Accessories, package contents
  • Conclusion, pros and cons
  • Photos

The content of this article reflects our own experiences and viewpoints. We aim to offer insights on a topic, and we hope others find it helpful and motivating. Additionally, we make every effort to provide accurate and comprehensive coverage. If you found an error or something lacking in the specifications for the Nitecore NU43, then tell us.

Nitecore NU43 / NU43

The NU43 is a cool headlamp. People can use headlamps in a wide range of activities and professions. TIR lens plays a significant role in shaping the beam pattern of the NU43 flashlight. This light has 5 + 2 modes of lighting. The NU43's mode memory makes the user experience more seamless and intuitive. This USB rechargeable flashlight has become popular. It's a top choice for both everyday and demanding use.

Nitecore NU43 specifications

Rated 4 / 5 based on 438 user votes.

This headlamp lets you aim the beam where you need it. It gives better sight and cuts the risk of accidents or mistakes.

Nitecore NU43 / 1

Body, materials, weight, colors

Weight116 g
Length79.8 mm
Body diameter46.1 mm
Head diameter43.9 mm
Dimensions79.8 x 46.1 x 43.9 mm

This 116 g flashlight is slightly heavier than most handheld flashlights. But, it is still at a reasonable weight. A balanced flashlight has even weight. It can be more comfortable to hold for longer and reduce hand fatigue. This flashlight comes in a sleek black color option.

Nitecore NU43 / 2

System, LED, lens, reflector

Emitter2 x Luminus SST20 LEDs, 1 x unspecified red LED
Color temperature6500 K
Switchdual electronic side

Luminus is a US-based LED manufacturer. In the lighting industry, it has gained recognition as reputable. Color temperature is a characteristic of light. It is used to quantify the color appearance of light sources. The NU43's TIR lens is made of a single piece of transparent material. This material is typically acrylic or polycarbonate. The flashlight has electronic switches. They have many benefits and extra features compared to mechanical switches.

Nitecore NU43 / 3

Performance, flux, intensity, throw

Flux1400 lm
Intensity3800 cd
Throw123 m
CD/LM factor2.71

The 1400 lm output of NU43 provides great flexibility. You can adjust the brightness to fit different needs. The NU43 flashlight has 3800 cd. It provides a much brighter and more intense beam. The throw distance is the farthest distance the flashlight can light an object. The cd/lm factor is the candela-to-lumen ratio. It shows how concentrated a light source's output is.

Software, user interface, modes

Modes5 + 2 modes
Mode memoryyes
Ramping modeno

A flashlight's modes are different output settings or brightness levels. They can be chosen to meet different needs and preferences. The flashlight has mode memory. It remembers the mode you were using when the light was last turned off. It stays in that mode when you turn it on again. The SOS signal is commonly used in outdoor adventures or survival scenarios.

Features, battery, protections

Batteryintegrated 3400mAh Li-Ion battery
Battery indicatoryes
Charger portUSB Type-C
Thermal regulationyes
Impact resistance2 m
Specialsproximity sensor
red light
white light

The Nitecore NU43 flashlight is powered by integrated 3400mAh Li-Ion battery. A battery indicator lets users see the battery status. It helps them decide when to recharge or replace the battery. A flashlight's USB charger can be very useful. This is especially true in emergencies. In such situations, access to power outlets may be limited. LVP (Low Voltage Protection) is designed to protect the battery. It stops over-discharging, which can reduce battery life or cause permanent damage.

The built-in thermal control adjusts brightness output to prevent overheating. The "6" in the IP68 rating shows the level of protection. It's against solid objects, like dust and foreign particles. The flashlight has an IP68 rating. It can withstand being submerged in water beyond 1 meter for a prolonged period. The manufacturer specifies this. This flashlight has an impressive impact resistance rating of 2 m. It is built to endure accidental drops or impacts.

Accessories, package contents

Package contentsUSB Type-C cable

According to the ANSI/NEMA FL1 Standard, we measure the performance of the NU43 flashlight 30 seconds after switching on the light. The ANSI/NEMA FL1 2009 Standard is a set of flashlight performance guidelines.

Conclusion, pros and cons

This Nitecore flashlight, like any other, has its strengths and weaknesses. Let's take a close look at both sides to understand this flashlight better. I share my thoughts on its standout features and the parts that might need improvement. Keep in mind, these are just my opinions, and you might have a different perspective.


  • lightweight
  • TIR lens
  • side switch
  • adequate performance
  • multiple modes
  • mode memory
  • SOS/beacon function
  • integrated battery
  • battery indicator
  • USB charger
  • low-voltage protection
  • thermal regulation
  • dust protected
  • waterproof


  • plastic body
  • unspecified LED
  • cool light
  • low intensity
  • no auxiliary LEDs
  • non-magnetic


Nitecore NU43 / NU43 photo 1.
Nitecore NU43 / NU43 photo 2.
Nitecore NU43 / NU43 photo 3.
Nitecore NU43 / NU43 photo 4.
Nitecore NU43 / NU43

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David Hagon
I love bushcraft and flashlights. I find joy in mastering wilderness survival skills and exploring the realm of illuminating gadgets. Bushcraft isn't just fun, it's a learning journey. I form a strong bond with nature. It's more than a hobby, it enriches me in practical and spiritual ways.
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