Acebeam PT40 SST20 (2020) review

6 x Luminus SST20 LEDs
3000 lm output
2500 cd intensity
1 x 18650 Li-Ion battery

The Acebeam PT40 SST20 (PT40SST20) released in 2020. It uses 6 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, 2500 cd intensity, and a beam distance of 100 m.

It uses a TIR lens to form the beam pattern. This light does not have memory function.

Table of contents:

Acebeam PT40 SST20 (PT40SST20) specifications

NamePT40 SST20
Rated 3/5 based on 866 user votes.


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

Weight95 g
Length126.8 mm
Body diameter24 mm
Head diameter32.8 mm
Materialaluminium alloy with HAIII hard-anodized finish
desert tan


The emitter of PT40 SST20 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.

Emitter6 x Luminus SST20 LEDs
Color temperature4000 K
Switchmechanical 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.

Flux3000 lm
Intensity2500 cd
Throw100 m
CD/LM factor0.83


Modes1 mode
Mode memoryno
Ramping modeno


The PT40 SST20 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. The PT40 SST20 is magnetic so that the flashlight can be attached to some metallic surfaces.

Battery1 x 18650 Li-Ion battery
Battery indicatorno
Charger portno
Thermal regulationyes
Impact resistance1.5 m


The clip is useful to keep the light secured in your pocket.

Package contentsclip

The performance of the Acebeam PT40 SST20 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 PT40 SST20, then don’t hesite and signal the problem to us.

Acebeam PT40 SST20 (PT40SST20) pictures

Acebeam PT40 SST20 / PT40SST20 photo Acebeam PT40 SST20 / PT40SST20 photo
Acebeam PT40 SST20 / PT40SST20

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