Noctigon KR4 (2020) review
The Noctigon KR4 (KR4) released in 2020. It uses 4 x Luminus SST20 LEDs, TIR reflector and 1 x 18650 Li-Ion battery. The powerful emitter in this flashlight provides up to 3000 lm output, 18500 cd intensity, and a beam distance of 272 m.
It uses a TIR lens to form the beam pattern. 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:
Noctigon KR4 (KR4) specifications
The aluminium body of flashlight treated with a Type III hard-anodized, anti-abrasive ﬁnish.
- 95 g
- 98 mm
- Body diameter
- 24 mm
- Head diameter
- 29 mm
- aluminium alloy with HAIII hard-anodized finish
The emitter of KR4 manufactured by Luminus, a US-based LED manufacturer. A TIR lens works on the principle of total internal reflection. The TIR lens collimates the LED light into efficient, well-controlled light beams that maximize the usable lumens in the target area.
- 4 x Luminus SST20 LEDs
- Color temperature
- 6500 K
- electronic rear
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.
- 3000 lm
- 18500 cd
- 272 m
- CD/LM factor
The KR4 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 ramping mode of the KR4 is intuitive, and lets you seamlessly ramp the output up and down over almost the entire output range. The KR4 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.
- Mode memory
- Ramping mode
The battery indicator lets you know when the battery is low, charging, or fully charged. The KR4 cannot charge batteries directly. You may need an external charger to keep your battery going. 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. It has auxiliary LEDs which make it really nice looking.
- 1 x 18650 Li-Ion battery
- Battery indicator
- Charger port
- Thermal regulation
- AUX LEDs
The clip is useful to keep the light secured in your pocket.
- Package contents
The performance of the Noctigon KR4 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 Noctigon KR4, then don’t hesite and signal the problem to us.
Noctigon KR4 (KR4) pictures
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