Nitecore Concept 2 (2018) review

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.

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.

Table of contents:

Nitecore Concept 2 (CONCEPT2) specifications

NameConcept 2
Rated 4/5 based on 1006 user votes.


The aluminium body of flashlight treated with a Type III hard-anodized, anti-abrasive finish.

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


The emitter of Concept 2 manufactured by Cree, a US-based LED manufacturing company. The Concept 2 has a smooth reflector. The properly focused smooth reflector gives you a more cohesive hotspot and therefore throws better. It has an AR coated lens.

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


The throw is the calculated distance in meters at which the flashlight produces a light intensity of 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.

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


The Concept 2 has mode memory. Mode memory means that the light 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.

Modes5 modes
Mode memoryyes
Ramping modeno


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.

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


The package includes a holster to safely store your flashlight. The lanyard prevents accidental loss of the flashlight.

Package contentscharging port cover
nylon holster
wall adapter

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.

The specifications above 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) 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

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