Acebeam TK18 CU Samsung (2019) review

3 x Samsung LH351D LEDs
3000 lm output
6110 cd intensity
1 x 18650 Li-Ion battery

The Acebeam TK18 CU Samsung (TK18CUS) released in 2019. It uses 3 x Samsung LH351D LEDs, TIR reflector and 1 x 18650 Li-Ion battery. The powerful emitter in this flashlight provides up to 3000 lm output, 6110 cd intensity, and a beam distance of 156 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 Samsung (TK18CUS) specifications

NameTK18 CU Samsung
Rated 3/5 based on 1014 user votes.


Weight124.5 g
Length105 mm
Body diameter23 mm
Head diameter25.5 mm


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.

Emitter3 x Samsung LH351D LEDs
Color temperature6500 K
Switchmechanical 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.

Flux3000 lm
Intensity6110 cd
Throw156 m
CD/LM factor2.04


The TK18 CU Samsung 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 Samsung is tactical strobe ready. The strobe light is disorienting to the person it is aimed at which makes it difficult for them to concentrate.

Modes5 modes
Mode memoryyes
Ramping modeno


The TK18 CU Samsung 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.

Battery1 x 18650 Li-Ion battery
Battery indicatorno
Charger portno
Thermal regulationyes


The clip is useful to keep the light secured in your pocket. The lanyard prevents accidental loss of the flashlight.

Package contents2 x spare o-rings
spare rubber cover

The performance of the Acebeam TK18 CU Samsung 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 Samsung, then don’t hesite and signal the problem to us.

Acebeam TK18 CU Samsung (TK18CUS) pictures

Acebeam TK18 CU Samsung / TK18CUS photo Acebeam TK18 CU Samsung / TK18CUS photo Acebeam TK18 CU Samsung / TK18CUS photo Acebeam TK18 CU Samsung / TK18CUS photo
Acebeam TK18 CU Samsung / TK18CUS

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