MecArmy is a new brand that has released a couple interesting products like the SNG3 and this PT16. I know there are lots of speculations for this light since just a handful of people have one, maybe because this is not exactly a budget light and numerous time it has been asked why MecArmy lights are so expensive. I never paid too much attention to the PT16 until Dale mentioned in a comment that he has one and made over 1,000 lumens, and without thinking it twice I placed my order. 
I got mine from Goinggear for $58 using “ggcpf10” coupon (–10%) and it was actually cheaper than buying from GB, also this is the second release of the PT16, I believe the only change vs the first is the UI. Today it arrived and I decided to write a review. It wasn’t my plan as I was just going to take some pictures and amp measurements, but then I realized this light really deserves a review.
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Specifications from manufacturer:
LED：3 CREE XP-G2
Max Output：1000 lumens (underrated!)
Max Run Time：20 h (more like 16 hours max)
Max Beam Distance：140m (really?)
Battery：16340 lithum ion
Length：67mm/2.638in
Head Size：28.8mm/1.134in
Weight：40g/1.411oz (actually heavier)
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Packaging & contents:
Inside the retail box with a peek flap there are: PT16, no-name 16340, 3 o-rings, instruction manual and lanyard.
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Build quality, size and weight:
Overall machining quality and anodizing are very very nice. There are zero rough edges or imperfection in the machining, threads are thick and square, the front bezel has perfect fit and the button has just the right size. Whichever factory that makes these lights definitely know what they’re doing!
The tail reminds me of the “Moodoolar triad tailcap”, not only by the looks, but also the price. 
The parts… The body can be locked out at both ends.
“ALTUN” marking on the back of the driver. It does seem like a well made driver, with some contact points probably for FW reflash. The positive contact on the body is spring loaded and the charging circuity is covered by a plastic disk.
Close up of the threads, with double o-ring in the back. The body is 2.3mm thick.
Front close up, this is NOT a carclo 20mm triple optic. It measures 22.7mm and the optics don’t touch each other.
Size comparison with my other lights this size. The PT16 is one of the heaviest, doubling the weight of the Fenix E15.
16340, CooYoo Quantum, Lummi RAW, S1 Cu, E15 2016, PT16, MaratacAAA Cu, D25C, Sinner 18350
The PT16 is also the chubbiest.
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UI & integrated charging:
For this version the UI has been upgraded, and it is pretty good with instant access to low, turbo and strobe from OFF.
From OFF:
-Click for low
-Double click for turbo
-Triple click for strobe
-Hold for momentary turbo
From ON:
-Click for OFF
-Hold to change modes
The microUSB connector is in the body like the cooyoo/illuminex. Red and green LED shows charge status. Integrated charging comes handy for some people, but for me it is pretty much useless. I would rather have a even more compact and lighter flashlight.
Charge test with Efest 16340 at 2.5V:
-Time: 1hr32min
-Maximum rate: 5.1V 0.56A
-Capacity 0.71A
-Termination voltage: 4.22V at green led, 4.19V after 5 minutes rest.
-Current draw after charge completion: 4mA
The body got pretty warm during the charge process.
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Performance:
This might be the most interesting part…
Current reading
Low: 0.04A
Mid: 0.17A
High: 0.68A
Turbo: 3.27A with efest 16340, 2.95A with included 16340.
Beamshots:
Low
Mid
High
Turbo
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Vs other lights:
Manual mode, 1/125 left, 1/1600 right. F4.0 fixed ISO and WB.
PT16 vs Fenix E15 2016:
PT16 vs Olight S1
PT16 vs Sinner 18350, 3x XPG S2 0D with 3A Qlite and narrow frosted optic
PT16 vs Modded D25C, XPL HI V2 1A and FET driver (5.3A)
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Ceiling bounce test: Panda bear used to show tint and hold the meter These are just my ceiling bounce numbers, they have nothing to do with real lumens. But they do give you an idea of what level of output you get.
Manual mode, 1/10 F4.0 ISO200 fixed WB
PT16…Starts at 175.2 but after 30 seconds it drops to 152.3
Fenix E15 2016… 87.2
Olight S1… 89.4
Maratac AAA with 10440… 51.9
D25C…170.1 This is a 1,300lm+ light, but it shows a lower value because flood lights do better in my ceiling tests.
Sinner 18350 triple XP-G… 150.1
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Runtime and temperature regulation:
I usually don’t even bother with the manual, but this time it said something that caught my attention: “turbo will drop to 70% of maximum brightess after 3 minutes…output will also be adjusted by real time temperature monitoring” is this some kind of PID? Temperature regulation in a light with such short runtime? Lets find out.
This one was performed with fan cooling, I will do one without any cooling. It does seem like temperature regulation to me, but the 16340 has so little capacity the output starts to drop due to low voltage when the temperature starts to normalize. With a higher capacity cell we can observe the temperature regulation more evidently.
1hr 30min after the runtime test finalized it was still lit and putting out some useful light, it wasn’t much, but I’d say at least 5 lumens. At this point I took the battery out and it read 2.54V. This light does not have low voltage cut out. But then this also means it is compatible with CR123s.
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Veredict:
This is a FUN light! Just take it out anywhere and blast the 1,000 lumens from a tiny flashlight, even strobe if you wish. I’ll be keeping mine in the keychain, but it won’t last very long though because it just adds so much weight and volume, it makes an uncomfortable bulge in my jeans pocket. In the end I might just go back to the E15, but I really much prefer the UI and output of the PT16.
My new keychain setup, these are my EDC items.
It is a bit expensive, but in my opinion it is well worth the price. The PT16 is very unique, I believe this is the first 1,000lm 16340 triple. Other manufacturers should look at this light and learn, it’s not like they can’t make a PT16 competitor, they just don’t want to. All I see is the same mediocre performance being released over and over, ~500lm flashlights are a thing of the past. S1, E15, RS16, D25C, you name it. How hard is to put a XPL or XML and drive it at 3A? We’ve been doing this ourselves for years. Nitecore EC11 seems to be the exception.
Soon I will update my review with a charge graph and runtime graph at various output levels, but for now this review is done. I hope you have enjoyed it.
