
Acebeam TK18 CU Nichia (2019) review
The Acebeam TK18 CU Nichia (TK18CUN) released in 2019. It uses 3 x Nichia 219C LEDs, TIR reflector and 1 x 18650 Li-Ion battery. The powerful emitter in this flashlight provides up to 1650 lm output, 9160 cd intensity, and a beam distance of 191 m.
It uses a TIR lens to form the beam pattern. 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:
Acebeam TK18 CU Nichia (TK18CUN) specifications
- Brand
- Acebeam
- Name
- TK18 CU Nichia
- Type
- TK18CUN
- Rating
- Launch
- 2019
- Form
- flashlight
Body
- Weight
- 124.5 g
- Length
- 105 mm
- Body diameter
- 23 mm
- Head diameter
- 25.5 mm
- Material
- copper
- Colors
- copper
System
The emitter of TK18 CU Nichia manufactured by Nichia, a Japanese 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.
- Emitter
- 3 x Nichia 219C LEDs
- Color temperature
- 4000 K
- Reflector
- TIR
- Lens
- TIR
- Switch
- mechanical rear
Performance
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.
- Flux
- 1650 lm
- Intensity
- 9160 cd
- Throw
- 191 m
- CD/LM factor
- 5.55
- CRI
- 95
Software
The TK18 CU Nichia 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 TK18 CU Nichia is tactical strobe ready. The strobe light is disorienting to the person it is aimed at which makes it difficult for them to concentrate.
- Modes
- 5 modes
- Mode memory
- yes
- Ramping mode
- no
- Strobe
- yes
- SOS/Beacon
- no
Features
The TK18 CU Nichia 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.
- Battery
- 1 x 18650 Li-Ion battery
- Battery indicator
- no
- Charger port
- no
- LVP
- yes
- Thermal regulation
- yes
- Protection
- IPx8
- AUX LEDs
- no
- Magnetic
- no
Accessories
The clip is useful to keep the light secured in your pocket. The lanyard prevents accidental loss of the flashlight.
- Package contents
- 2 x spare o-rings
clip
lanyard
spare rubber cover
The performance of the Acebeam TK18 CU Nichia 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 Acebeam TK18 CU Nichia, then don’t hesite and signal the problem to us.
Acebeam TK18 CU Nichia (TK18CUN) pictures

If there’s information about the Acebeam TK18 CU Nichia that you would like to see on this site, then write to us.