Nitecore Concept 2 6500lm In-depth review, Pros and Cons

4 x Cree XHP35 HD LEDs
6500 lm output
39700 cd intensity
integrated 12400 mAh Li-Ion battery

The Nitecore Concept 2 (CONCEPT2) released in 2018. It uses 4 x Cree XHP35 HD LEDs, SMO reflector and integrated 12400 mAh Li-Ion battery. The powerful emitter in this flashlight provides up to 6500 lm output, 39700 cd intensity, and a beam distance of 398 m.

The Concept 2 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 5 modes of lighting. The memory function is a nice feature, the light will remember the last used mode. It has a strobe function, which is one of the most effective self defense tools available.

Nitecore Concept 2 (CONCEPT2) pictures

Nitecore Concept 2 / CONCEPT2 photo
Nitecore Concept 2 / CONCEPT2 photo
Nitecore Concept 2 / CONCEPT2 photo
Nitecore Concept 2 / CONCEPT2 photo
Nitecore Concept 2 / CONCEPT2

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 Concept 2, then don’t hesite and signal the problem to us.

Nitecore Concept 2 (CONCEPT2) specifications

NameConcept 2
Rated 4/5 based on 1198 user votes.

The Concept 2 flashlight enhance personal safety and security. It allows you to illuminate dark areas, identify potential hazards, or deter threats by shining light on them.


Weight348 g
Length112.5 mm
Body diameter40 mm
Head diameter40 mm
Materialaluminium alloy with HAIII hard-anodized finish

This 348 g flashlight would be considered relatively heavy for a handheld flashlight. Flashlights in this weight range may have features like extended battery life, intense brightness, or rugged construction for heavy-duty use. It's important to consider the length of the flashlight to ensure it fits comfortably in your desired carrying method. The aluminium body of Concept 2 has excellent thermal conductivity, meaning it can effectively dissipate heat generated by the flashlight's components, such as the LED or battery.

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. The Concept 2 flashlight is offered in a stylish black color.


Emitter4 x Cree XHP35 HD LEDs
Color temperature6500 K
Lenstoughtened AR coated glass
Switchelectronic side

The emitter of Concept 2 manufactured by Cree, a US-based LED manufacturing company. Cree is a well-regarded LED manufacturer known for its high-quality products and innovation in the lighting industry. 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 Concept 2 has a smooth reflector. The properly focused smooth reflector gives you a more cohesive hotspot and therefore throws better.

The AR coating reduces the loss of light due to reflections, allowing more light to pass through the lens. This can increase the overall brightness and efficiency of the Concept 2 flashlight. The Concept 2 utilizes electronic switch. Electronic switches on flashlights provide a range of advantages and additional features compared to mechanical switches.


Flux6500 lm
Intensity39700 cd
Throw398 m
CD/LM factor6.11

With 6500 lm, the Concept 2 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. The Concept 2 flashlight with 39700 cd has an extended throw distance, allowing you to illuminate objects or areas at greater distances. This can be advantageous for outdoor activities, search and rescue operations, or scenarios where long-range visibility is required.

The throw is the calculated distance in meters at which the flashlight produces a light intensity of 0.25 lux. Candela per lumen (cd/lm) is a measure of a flashlight's beam intensity relative to its total luminous flux or output. It quantifies the concentration of light emitted by the flashlight in relation to the total amount of light produced.


Modes5 modes
Mode memoryyes
Ramping modeno

Modes on a flashlight refer to different output settings or levels of brightness that can be selected to suit different needs and preferences. The Concept 2 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 Concept 2 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.


Batteryintegrated 12400 mAh Li-Ion battery
Battery indicatoryes
Charger portyes
Thermal regulationyes
Impact resistance1 m

The Nitecore Concept 2 flashlight is powered by integrated 12400 mAh Li-Ion battery. 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 built-in thermal control automatically adjusts brightness output to prevent overheating.

The "6" in the IP68 rating represents the level of protection against solid objects, specifically dust and foreign particles. It indicates that the Concept 2 flashlight, is fully protected against the entry of dust and other solid objects. The "8" in the IP68 rating indicates the highest level of protection against water ingress. It is recommended to handle flashlights with care and avoid subjecting them to unnecessary rough treatment to ensure their longevity and reliable operation.


Package contentscharging port cover
nylon holster
wall adapter

The holster provides a reliable and convenient way to keep your flashlight securely protected when not in use. Attaching a lanyard to your Concept 2 flashlight provides an additional layer of security, reducing the risk of accidental drops or loss.

The performance of the Nitecore Concept 2 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 Concept 2 (CONCEPT2) comparisons

According to our statistics, the Nitecore Concept 2 flashlight was most often compared on our site with the following flashlights.

Nitecore MT42 (MT42) Nitecore MT42 Nitecore Tiki LE (TIKILE) Nitecore Tiki LE Nitecore EC22 (EC22) Nitecore EC22 Nitecore EC4S (EC4S) Nitecore EC4S Nitecore Ci6 (CI6) Nitecore Ci6 Nitecore P22R (P22R) Nitecore P22R Nitecore R40 (R40) Nitecore R40 Nitecore P10GT (P10GT) Nitecore P10GT

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