[Review] Astrolux FT02S || 21700 - 4 x XHP50.2 - Sand Color || Beamshots And Measurements

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bilakos10
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[Review] Astrolux FT02S || 21700 - 4 x XHP50.2 - Sand Color || Beamshots And Measurements

The flashlight was sent to me from Banggood for review.

Here's the product's page for more info: Astrolux FT02S  
Coupon Code: BGFT02S (27% OFF) 



The flashlight comes in a normal cardboard box.



The flashlight is seated into laser cut foam for shipping protection.



Other than the flashlight, one finds the following included in the box

  • User manual
  • Wrist lanyard
  • 2 x replacement o-rings

The FT02S comes in the following colors: Black, Green, Sand.
I chose to get the Sand color, as it seems very appealing to my eyes.



As you can see, the FT02S comes with spotless anodization and some pretty knurling along its body.



It's operated by a side-mounted e-switch.
The e-switch comes with an indicator LED used to inform the user about the battery's charge level as well as act an stand-by locator light.



Opposite to the e-switch we can find the charging port.
Of course, the port is water-proofed via a rubber flap that creates a tight seal.



The FT02S can be recharged via a regular USB Type-C cable.



Once plugged into a charger, the indicator LED will turn Red / Green to indicate the charge's state.
While charging a fairly depleted battery, I recorded up to 1.8A of input current.



The head makes sure of some thick heat-sinking grooves which helps the thermal performance of the flashlight.



A polished, smooth metal bezel is used to guard the flashlight's AR-coated glass lens.



The FT02S comes with smooth quad reflector and either 4 x SST-40 or 4 x XHP50.2 emitters.
I've chosen to receive the 4 x XHP50.2 option.
As can be seen, the centering of the diodes is excellent.



The tail of light is flat, which allows it to tail stand.



The driver is set in place via a metal ring.
A brass tab is used as the positive terminal in order to decrease the overall resistance.



The tail houses the rear spring and its PCB.
As can be see, the FT02S make use of dual thick springs.



The rear threads are very cleanly cut and arrived anodized.
The anodization allows the flashlight to be mechanically locked out.



The front threads are also nicely cut but without being anodized.



Thank to the two included adapter tubes, the FT02S can accept both 18650, 21700 and 26650 cells.
Notice that 26650 to 21700 adapter(left) has an o-ring in its upper part, which creates a very tight fit with the flashlight's body and prevents any rattling. 



Here's a few photos demonstrating the use of battery adapters.
No adapter (26650) - 21700 - 18650

   

User Interface

The flashlight is using the Anduril firmware.
Here's a diagram demonstrating the majority of the available functions.


Performance

I got my measurements using a high-drain 21700 battery.
The flashlight uses the Anduril firmware, which means that the user is eligible to select any brightness between the Min and Max using the infinitely brightness feature.

Level  Output Current Draw

 Min

<1 lumen 1.40 mA

 Max 

12.450 36.1 A


As you can see, the FT02S w/ 4 x XHP50.2 is able to push more than 12K lumen at turn-on.
Additionally, I went ahead and measured the stand-by current draw.

State Current Draw
Off | No Indicator LED 25.8 μΑ
Off | Low Indicator LED 47.1 μΑ
Off | High Indicator LED 86.6 μΑ


As expected, the Astrolux FT02S displays excellent stand-by drain, even when the indicator LED is set to full brightness. 

Beamshots

Here's a few outdoor beamshots demonstrating the performance of the Astrolux FT02S.

 
 
 

 
Edited by: bilakos10 on 03/07/2021 - 07:22
zoulas
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Nice review. Nice light. I am waiting for the 5700K which is out of stock.

pennzy
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Liked your review. How long did turbo last? Real lumen monster. Good to see low stand by current.

Sirstinky
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pennzy wrote:
Liked your review. How long did turbo last? Real lumen monster. Good to see low stand by current.

Depends om how you configure the thermal limit and calibration. Mine was way off and turbo lasted seconds before the calibration. After maxing out the limit and calibrating turbo lasted about a minute, which isn’t bad at all. Thre light has good heatsinking.

bilakos10
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zoulas wrote:
Nice review. Nice light. I am waiting for the 5700K which is out of stock.

I was also wanting to get the 5700k, but went with the 6500k cause I didn’t know how much it would take for it to re-stock.

bilakos10
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pennzy wrote:
Liked your review. How long did turbo last? Real lumen monster. Good to see low stand by current.

I’ll post some thermal regulation charts in the upcoming days!
But as @Sirstinky said, it highly depends on the configuration settings. I’ll probably go for some sane settings – most probably 55c Max temp.

pennzy
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I appreciate that. I’ll be looking for them.

Sirstinky
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pennzy wrote:
I appreciate that. I’ll be looking for them.

Here’s my runtime charts if interested: Ft02s

I set the thermal limit to max (70 C) but the light got up to almost 85 C during the turbo test. The heatsinking is quite good on this, getting the heat away from the leds quick. Not bad for dissipating over 90 watts.

pennzy
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Thanks, I will check it out.