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Nitecore TM39 Lite flashlight review

Luminus SBT90.2 LED
5200 lm output
562500 cd intensity
4 x 18650 Li-Ion batteries

The Nitecore TM39 Lite flashlight released in 2020. It uses Luminus SBT90.2 LED, SMO reflector and 4 x 18650 Li-Ion batteries. The powerful emitter in this flashlight provides up to 5200 lm output, 562500 cd intensity, and a beam distance of 1500 m.

Curious if the TM39 Lite shines bright? You'll find out soon!

Table of Contents

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 TM39 Lite, then tell us.

Nitecore TM39 Lite / TM39LITE

The TM39 Lite flashlight provides instant illumination at the touch of a switch. This immediate response is particularly useful in emergency situations. This light has 4 modes of lighting. The TM39 Lite's mode memory makes the user experience more seamless and intuitive. It has a strobe function, which is one of the most effective self defense tools available.

Nitecore TM39 Lite specifications

BrandNitecore
NameTM39 Lite
TypeTM39LITE
Rating
Rated 4 / 5 based on 1458 user votes.
Launch2020
Formflashlight

This Nitecore flashlight offers portability, versatility, and reliability in providing illumination.

Nitecore TM39 Lite / 2

Body, materials, weight, colors

Weight876 g
Length195 mm
Body diameter50 mm
Head diameter90 mm
Materialaluminium alloy with HAIII hard-anodized finish
Colorsblack

The flashlight is a bit heavy, its weight is 876 g. A balanced flashlight has even weight. It can be more comfortable to hold for longer and reduce hand fatigue. Aluminium is a lightweight material, which is beneficial for TM39 Lite flashlight. The HAIII coating is uniform and attractive. It is often available in different colors, giving the flashlight a sleek, pro look. This flashlight comes in a sleek black color option.

Nitecore TM39 Lite / 4

System, LED, lens, reflector

EmitterLuminus SBT90.2 LED
Color temperature6000 K
ReflectorSMO
Lenstoughtened AR coated glass
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. Flashlights use the smooth reflector when long-range light is important. This includes searchlights and thrower flashlights. The AR coating of the lens helps to reduce these reflections. It does this by changing the lens surface's refractive index. The flashlight has electronic switches. They have many benefits and extra features compared to mechanical switches.

Nitecore TM39 Lite / 3

Performance, flux, intensity, throw

Flux5200 lm
Intensity562500 cd
Throw1500 m
CD/LM factor108.17

The TM39 Lite flashlight has 5200 lm. It will provide an exceptionally bright and powerful beam of light. 562500 cd represents an extraordinarily high level of brightness. 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.

Nitecore TM39 Lite / 1

Software, user interface, modes

Modes4 modes
Mode memoryyes
Ramping modeno
Strobeyes
SOS/Beaconyes

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 TM39 Lite flashlight has a strobe function. It produces a rapid, repetitive flashing of light. The SOS signal is commonly used in outdoor adventures or survival scenarios.

Features, battery, protections

Battery4 x 18650 Li-Ion batteries
Battery indicatoryes
Charger portyes
LVPyes
Thermal regulationyes
ProtectionIP68
AUX LEDsno
Magneticno
SpecialsOLED display

The Nitecore TM39 Lite flashlight is powered by 4 x 18650 Li-Ion batteries. A battery indicator lets users see the battery status. It helps them decide when to recharge or replace the battery. 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.

Accessories, package contents

Package contents2 x spare o-rings
lanyard
spare USB plug
strap
wall adapter

When gripping the flashlight with the lanyard around your wrist, it gives a more secure hold. It also gives a more stable hold. Replacing worn or damaged O-rings helps a lot. It keeps up the flashlight's durability and performance.

According to the ANSI/NEMA FL1 Standard, we measure the performance of the TM39 Lite 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.

Pros

  • aluminium body
  • AR coated lens
  • side switch
  • strong flux
  • extremely bright
  • multiple modes
  • mode memory
  • tactical strobe
  • SOS/beacon function
  • battery indicator
  • low-voltage protection
  • thermal regulation
  • dust protected
  • waterproof
  • OLED display
  • adapter included

Cons

  • cool light
  • no auxiliary LEDs
  • non-magnetic

Photos

Nitecore TM39 Lite / TM39LITE photo 1.
Nitecore TM39 Lite / TM39LITE photo 2.
Nitecore TM39 Lite / TM39LITE photo 3.
Nitecore TM39 Lite / TM39LITE photo 4.
Nitecore TM39 Lite / TM39LITE photo 5.
Nitecore TM39 Lite / TM39LITE

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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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