
Nitecore TM39 Lite 5200lm In-depth review, Pros and Cons
The Nitecore TM39 Lite (TM39LITE) 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.
The TM39 Lite flashlight provides instant illumination at the touch of a switch. This immediate response is particularly useful in emergency situations or when you need instant visibility. This light has 4 modes of lighting. The mode memory of TM39 Lite contributes to a more seamless and intuitive user experience. It has a strobe function, which is one of the most effective self defense tools available.
Nitecore TM39 Lite (TM39LITE) pictures






The specifications below are based on the official data published by the manufacturer, but we also take user reviews into consideration. If you found an error or something lacking in the specifications above for the Nitecore TM39 Lite, then don’t hesite and signal the problem to us.
Nitecore TM39 Lite (TM39LITE) specifications
Brand | Nitecore |
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Name | TM39 Lite |
Type | TM39LITE |
Rating | |
Launch | 2020 |
Form | flashlight |
This Nitecore flashlight offers portability, versatility, and reliability in providing illumination.
Body
Weight | 876 g |
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Length | 195 mm |
Body diameter | 50 mm |
Head diameter | 90 mm |
Material | aluminium alloy with HAIII hard-anodized finish |
Colors | black |
The TM39 Lite flashlight is a bit heavy, its weight is 876 g. It's important to consider the intended use and personal comfort when choosing a flashlight of this weight. The length of a flashlight can also impact its balance and weight distribution. A well-balanced flashlight, where the weight is evenly distributed, can be more comfortable to hold for longer periods and reduce hand fatigue. Aluminium is a lightweight material, which is beneficial for TM39 Lite flashlight.
The HAIII coating can also enhance the visual appearance of the flashlight. It offers a uniform and attractive finish, often available in different colors, giving the flashlight a sleek and professional look. This flashlight comes in a sleek black color option.
System
Emitter | Luminus SBT90.2 LED |
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Color temperature | 6000 K |
Reflector | SMO |
Lens | toughtened AR coated glass |
Switch | dual electronic side |
The emitter of TM39 Lite manufactured by Luminus, a US-based LED manufacturer. Luminus is recognized as a reputable LED manufacturer in the lighting industry. They are known for producing high-quality LEDs with excellent performance and reliability. Color temperature is a characteristic of light. It is measured in units called Kelvin (K) and is used to quantify the color appearance of light sources, particularly white light.
The smooth reflector is typically used in flashlights where long-range illumination is a priority, such as searchlights or thrower flashlights. By minimizing light scattering and maximizing light directionality, the smooth reflector can produce a tighter and more concentrated beam that reaches greater distances. The AR coating of the lens helps to mitigate these reflections by altering the refractive index of the lens surface. The TM39 Lite utilizes electronic switch. Electronic switches on flashlights provide a range of advantages and additional features compared to mechanical switches.
Performance
Flux | 5200 lm |
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Intensity | 562500 cd |
Throw | 1500 m |
CD/LM factor | 108.17 |
With 5200 lm, the TM39 Lite flashlight will provide an exceptionally bright and powerful beam of light. It can illuminate large areas, outdoor spaces, or even act as a temporary spotlight in certain situations. 562500 cd represents an extraordinarily high level of brightness. The throw distance refers to the maximum distance at which the flashlight can effectively illuminate an object or target. The stated throw distance typically indicates the point at which the brightness falls below a specified threshold, such as 0.25 lux. The candela per lumen (cd/lm) ratio can be used to determine if a flashlight has a spot or flood type beam. Well-focused spot beams can be over 100 cd/lm, tactical flashlights are typically between 20-100 cd/lm, and work lights are less than 10 cd/lm.
Software
Modes | 4 modes |
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Mode memory | yes |
Ramping mode | no |
Strobe | yes |
SOS/Beacon | yes |
Modes on a flashlight refer to different output settings or levels of brightness that can be selected to suit different needs and preferences. The TM39 Lite has mode memory. Mode memory means that the flashlight will remember the mode you were using when the light was last turned off, and when you turn it on again. The TM39 Lite is tactical strobe ready. The strobe light is disorienting to the person it is aimed at which makes it difficult for them to concentrate. It has the SOS beacon function for an emergency situation. The SOS flashes Morse code so you can signal for help when needed. The SOS signal is recognized as an international distress call and is used to indicate an urgent need for assistance.
Features
Battery | 4 x 18650 Li-Ion batteries |
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Battery indicator | yes |
Charger port | yes |
LVP | yes |
Thermal regulation | yes |
Protection | IP68 |
AUX LEDs | no |
Magnetic | no |
Specials | OLED display |
The Nitecore TM39 Lite flashlight is powered by 4 x 18650 Li-Ion batteries. The battery indicator lets you know when the battery is low, charging, or fully charged. This flashlight has a built-in low voltage protection (LVP) to prevent damage to the cell from over-discharge, so protected cells are not necessary. The TM39 Lite has thermal protection feature. The thermal protection mechanisms are designed to monitor and regulate the temperature of the flashlight during operation. This feature helps prevent overheating, which can be detrimental to the flashlight's performance, battery, and overall safety.
The "6" in the IP68 rating represents the level of protection against solid objects, specifically dust and foreign particles. It indicates that the TM39 Lite flashlight, is fully protected against the entry of dust and other solid objects. The TM39 Lite flashlight with IP68 rating can withstand being submerged in water beyond 1 meter for a prolonged period, typically specified by the manufacturer.
Accessories
Package contents | 2 x spare o-rings lanyard spare USB plug strap wall adapter |
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When gripping the flashlight with the lanyard around your wrist, it provides a more secure and stable hold. Regularly replacing worn or damaged O-rings helps maintain the overall durability and performance of the flashlight.
The performance of the Nitecore TM39 Lite flashlight is measured according to the ANSI / NEMA FL1 Standard 30 seconds after switching the light on. The ANSI/NEMA FL1 2009 Standard is a set of flashlight performance guidelines.
Nitecore TM39 Lite (TM39LITE) comparisons
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