[PART 2] Official BLF GT Group Buy thread. Closed, but Public sales open!

Thanks haven’t been around that long……

Jason/TA, I received my bag and cap on Monday. Thank you for your help.

Okay, I’ll remove you from the list.

BLF GT CW vs Astrolux MF04 CW
Lux reading at 10 meter throw distance.


Both flashlights with 1A D4 bin emitters.

Makes sense, the MF04 has a larger reflector.

Dang it be ugly though, but then I think the short tube on the GT is ugly as well (although not quite as bad lol).

Mf04 xhp 35 have 200 more lumen than blf gt xhp35… so it is true…

Did you measure 200 more or 300 more?

Please add me to the list with issues : I ordered 2 GTs, short tube, bag, shoulder strap and 2 cover caps. Received everything except one cap ( received one cap instead of two ).

No big issue, no complain ( :smiley: ), I already sent an email to Neal asking if he could ship another cap with the snail mail.

Measured lux reading at 25 meter distance throw.
Thrunite TN42 CW

BLF GT NW

BLF GT CW

ASTROLUX MF04 CW

Hardusvd70, your using good batteries in the GT, right? Something like 30Q or 35E?

I know Panny B and protected cells will drop the GT out of regulation pretty quick with just 4 of them.

It looks like the GT has been bested. Astrolux’s driver must be making that led scream for mercy! Lol

Comparing both of the CW lights I get:

MF04 - 1.36mcd and 1.36mcd

GT - 1.23mcd (10m) and 1.15mcd (25m)

The GT measures a bit less at the further distance. Interesting.

Crees emitter bins have a tolerance of 14. So you can have the exact same bin and at 2000 lumen 14 would be 280 lumen.

So you could measure one D4 1A at 1860 lumen and another D4 1A at 2140 lumen. This is the outer limits of their tolerance, but still in spec.

Emitter tolerances might be playing a small role in the different lux readings, another would be the little bit of extra amperage the MF04S is giving. I think 0.2A (2.5A vs 2.7A)

I think the MF04 reflector is just a couple mm bigger, not much at all. Maybe that is also a very small factor.

IIRC the MF04 was around 10mm larger, which is fairly significant. They might also be using an E2 bin emitter.

Plus I have noticed that XHP35’s vary widely in performance compared to many other cree LED’s. They really seem to stress the tolerance limits of the bin more then most.

I was checking in on the guys who had GT issues.

From Maliblue:

So that is one to cross off the list. Now we are at 10.

Yes indeed I use Samsung Q30 and also Sony VTC6 batteries for my flashlights. I did use these batteries in both flashlights. Did test over different distances. For me the Astrolux is the better thrower.

Because it measures turbo a tiny bit higher? You can’t even see that difference with your eyes. I would have to evaluate both lights as a whole and on many other factors to say which is better overall.

I was told Sony VTC6 are the best for boost driver or FET.

There are a lot of high drain cells that are all pretty close to each other. If you look a HJK’s comparator you see the VTC6 and 30Q are pretty much the same, even at 15A.

For heavy loads it seems the general rule is you want the less voltage drop for the particular load you are running to get the most power.

FET drivers are a bit unique because turbo is direct drive. So you really need to match the battery to the emitters voltage characteristics. A VTC6 might burn up the certain led, while a 35E high capacity might not. So you have to get the right combo.

Do we have any progress with broken parts replacement?
Sad, that that such a big company is burying head in the sand.
Mike

None of this info is going through me or TA. Lumintop (maybe Neal) should be contacting the people directly to sort out the issues.

Although… I did ask everyone on the Issues list if they heard from Lumintop or Neal last week. I have not from 3 people, yet. Here is the results so far:

sp5it - no contact from LT
zelee - no contact from LT
FreeMagenta - ???
Bruno28 - no contact from LT
VRT - ???
Tete - no contact from LT
Jimmy007 - no contact from LT
k125bw - no contact from LT
Dustynell - ???
Chito - Neal contacted him on the 8th, but instead of trying to send replacement parts, he offered a $10 refund. That is not a proper solution to a light damaged in shipping (registered box).

Maliblue recieved his missing light so I removed him from the list.

Leo at Lumintop is supposed to be handling these issues, but he did not contact anyone on the Issues list last week. :open_mouth:

That really sad

I think they (LT) must finishing BLF GT group buy before start blf GT70 group buy.

Hope TA can help people that still not received GT or acc and broken parts.

Look like he have contact with LT / Neal in GT70 thread about update on the search for the XHP70.2.

Good luck for you and people in “issues list ”