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По умолчанию ThruNite T20T (1xCR123A/RCR123A/16340) 255Lm max-REVIEW

The ThruNite T20T is a small flashlight with a tail switch,body made of Titanium alloy(TC4),powered by single CR123A or 16340 battery.
Shares the same design with the previously released AA flashlights T10.
The T20 model is available in Titanium(T20T,reviewed below) or Stainless steel body(T20S).
Equipped with a cool white or a neutral white LED.
Brightness levels:
Firefly:0.04Lm 100hours, Low:11Lm 19hours, High:255Lm 55min





45 grams without battery. ~63gr with a 16340 battery
81 mm Length
20 mm body diameter

Precise machining with no any defects or sharp edges.
There are grooves on the head for better grip and easier twisting the head if you prefer to change a mode this way.
The pocket clip fits well as size and stays as it should-not too tight,not too loose.


UI
The User interface is easy and convenient.
3 constant brightness modes Firefly-Low-High (in this sequence)
Firefly:0.04Lm 100hours, Low:11Lm 19hours, High:255Lm 55min
In terms of spacing,the lack of medium mode leaves a gap between Low and High.
Firefly mode is quite low brightness.Great for using in full darkness.
I feel the Low mode(having in mind the lack of Mid mode) too dim for my EDC needs,but this is just a personal preference.
No additional flashing modes.
ON/OFF by fully pressing the physical tail switch.
Half press the tail switch to change mode.
There is a memory for the last used mode as it requires the light to stay for two seconds in Off position and then the last used mode is memorized.
These 2 seconds are needed because of the reverse clicky switch interface.

Modes can also be changed by loosening/tightening the head. ON/OFF is possible too.
I personally don't feel this way of operating quite convenient in my hand.

Short video presenting the UI and design specifics.
(turn on annotations)
Прямая ссылка на видео YouTube


The T20T comes in a nice metal box.
Good protection while storing or transporting the flashlight and great looking if the flashlight is a gift.

Diffuser cap,pocket clip(comes unmounted) ,small hex key,spare screws,user manual.

Diffuser lens or cap is an always welcome accessory.:thumbsup:

Spare screws included.




Cree XP-G2 LED. Cool white on my sample.
Textured(orange peel) reflector is a good choice for a EDC pointed light,especially equipped with a small size LED,
which gives more narrower beam than the bigger XM-L2 led.
Perfectly centered LED on my sample.

Barely visible,toughened ultra clear glass lens with anti-reflective coating.

The tail switch cover is also made of metal.
It has a good size for comfortable use.
The switch is a reverse clicky switch,which activates the light after the click with no momentary ON option.
This of course is required of the UI. The tail switch takes care of the ON/OFF and mode switching.


Precise laser engraving. The titanium body is not fully polished as there is some very light relief and doesn't shine too much.
Improves the grip too.

The diffuser/ cone cap gives a good option for using the light as a candle.




As with other compact flashlights,some of the protected RCR/16340 batteries are just too long for the battery tube :shrug:.
The flashlight works only after fully screwing the head. Only then the - is delivered to the driver board.
The only battery I have and fit well,but still tightly pressed is the Nitecore NL166.
CR123A batteries should fit well. I don't use primary lithium batteries and don't have for test.
16340 IMR batteries also should fit well,because they come with no protection board to extend their length.

Normal triangular-cut threads with well rounded tops.
Good machine work.


Physical reverse polarity protection for improper battery instalation.

Normal for this type of material thickness of the body.



The T20T stays well in hand,comfortable in use and I didn't find it slippery,at least in my hand.
Access to the switch is easy.



I measured initial output of 230 Lm and 220 Lm 30sec after activation.
The light is constant,with no sign of pwm.

Well regulated output,almost flat line throughout.
The thin Titanium body is heating while working on High mode for a long time.
I used a small cooling fan to keep an optimal temperature for the test.

This is a runtime test on High mode using a Keeppower 16340 700mAh battery.
This battery is too long to fit T20T,so I added a piece of copper wire to ensure delivering - to the driver.
Battery voltage
U start= 4.17V
U end=3.10V (seems to have a low voltage protection )


Beam



Beam is a good combination of throw and flood with a smooth transition between them.
Hardly visible on the small pictures due to an image host compression.
Clean cool white beam with no greenish or bluish tint,as can be seen in the comparison shots with other lights :thumbsup:



Closer to the wall.



1 meter, 1/20sec white wall







1 meter, 1/250sec white wall





5 meters, 1/6sec


5 meters, 1/50sec





Thanks for reading!






ThruNite T20T provided by ThruNite for test and review.
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[Исправлено: FlashLion, 25.04.2015 в 21:25] Причина: Video
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