sundancer64 this wurkkos is a great choice ! i like the XHP70.2 led…! not as much as me beloved MTG2
the output is very good without cooling
the big con with reviews is the cooling runtime graphs ! 1lumens and zeroair review does not reflect the everyday use of flashlights.
There are SO many variables involved in the real world use of our lights. Ambient temperature, relative humidity, is it actually raining? Foggy? Windy? Wearing gloves or is your hand pulling heat from the light?
Very difficult to carve in stone one set of numbers. What cell are you using? How new is it? How much hard use has it seen?
Two of these hosts sell on AliExpress for $22 and change. You have to supply a driver and an MCPCB with your choice of emitter.
Assembly requires soldering, at a very minimum soldering the drivers leads to the MCPCB to power the emitter will be necessary.
yes you are right too much variables but active cooling during review really change the results…
Great host the X6 for custom mcpcb and led tests !
I like the M1 convoy host from MTBN electronics…great choice for 16$
I personnaly have tested DOA flashlights (one thrunite and one haikelite) and custom build host for Leds only and mount them on my mills. I drive them with cheap PWM chinese board + 24V powersupply. MTG2 is my favorite for custom builds…With great fins it can sustain up to 60°C a lot of watts…
There is obviously merit to the argument that this does not depict the “real use” of the light. Yet, it is also true that performing runtimes with no cooling is not representative.
As you move around with the light in real life, some active cooling will occur due to your hand-holding.
Most of the time, you will be switching the light on and off for brief intervals.
Very few people will turn on a fully charged light and let it run down its battery in one sitting.
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Excellent work man !
Nice Mizou! I too love the MTG2 in that kind of set-up, used very similar on a power supply to grow a Carolina Reaper. Now it’s in a brown glass pill bottle running on a wall wart with a switch on my headboard, night light. 
Built the first Mezzol X6 this morning.
Made a copper adapter ring, re-flowed the LD4 into the ring then put a beryllium copper spring and 20 ga leads on it. Machined the X6 head to accept the 35mm Noctigon triple MCPCB, used the center XPG pad to mount a sliced 90 CRI 5000K LH351D.
Set up the driver at 4Amps, 4 modes + middle level moon mode. “Turbo” is a 1000 lumens Constant Current.
Works nice, looks good.
Will have to check run time, need to dig out a high capacity 18650 and charge it up.
Took pics, all of a sudden the forum is saying my pics are too large. Guess it’s back to Image Shack!
The nice thing about the LD4 driver is that it maintains Constant Current on all levels OR up to Turbo if you engage Direct Drive. In DD Turbo is essentially a full FET direct drive output. So it makes it easy to manage cell life. Adjustable on the fly.
So with it set to CC, 4A, it’s doing 1000 lumens. I’ll check what 6A does and switch to DD to check Turbo there. Nice options.
I don’t have any fancy charts or graphs, sorry.
On an old Panasonic NCR18650BD the X6 starts at 1004 lumens, over 10 minutes it drops to 955 lumens and the BD cell was discharged to 3.84V. Flashlight temperature at the finned head measured 133.9°F.
Dropped 49 lumens over a 10 minute run, on the light box surrounded by foam.
LD4 driver set on Constant Current, 4A.
Yeah, head-up still air testing says one thing. Light active cooling says another. It’s valuable to have both.
I don’t know what he’s doing these days if not the same, but he posted some years back about his setup. I can’t remember the details well enough but the actual air flow reaching the test light is very minimal - something to try to replicate the minimal cooling that open air and blood circulation provide. On a typical day where I live I will always see more convective cooling from the wind than what he has in his testing setup. It’s a decent approach and it’s good that he takes the extra time to test both ways, imho.
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Actually, I do also test both. Each test tells something different .
It’s a delicate balance, like being married.
so true
Really interesting test ! thanks for sharing this