[PART 1] Official BLF GT Group Buy thread. Group buy officially closed! Lights shipping.

It was mentioned earlier, people want to be able to hold the thing.
26650s would require a handle to hold it, and at that point they may as well do the box design they originally had in the vote.
More people voted for this style of light, so that’s what they’re going with.
Also, more people own 18650s.

I was the one that brought that up earlier. I meant to jump back in and clarify that I meant 4 26650 inline like the L6 but nearly double the length, not a 4-26650 side-by-side box. The box design doesn’t appeal to me either but if the 4 cells were in a nice straight line it would be about the length of a 4 cell Mag but WAAAY cooler.

Interesting idea.
Tube would be much thinner and runtime would be shorter tho.

There is a solution to use 26650s, but that would mean 4 in series, in a bored-out thick long battery tube, and from what I understand that’s not wanted by the development team, and really that’s who’s calling the shots in the end. So like I’ve mentioned before this light will not suit everyone . If you don’t think it is for you look elsewhere. There is literally no one single light to suit the 100th percentile of users, this one is not that magic bullet either.
It will be a specialised long throw beast. Not your EDC that Jim, Jill and John will want for late-night fridge raids.
Members new and old in a sense insulting some aspects of this light should be thankful they’ve been allowed to view it’s progression in the R&D stages. And also have their opinions on it heard.

Today’s 2cents.

Edit - that first sentence or 2 was being typed the same time as other members. Sorry for repeating your words (-:

Not necessarily. Bore out a fat tube to accommodate 26650 width. Yes it would weigh a lot due to very thick battery tube walls - but it’s going to anyway.
But in saying that you’d lose 2 carriers and 4 cells. So the weight may be ok.

Please add me to the very interested list. I can’t miss out on another potential industry stand setting BLF creation.

Ahahaha! Idiocracy… a documentary!! I’ve been saying the same thing for years. I call it the “idiocracy effect.”

I work on a plane and have to make an announcement on each leg regarding the Samsung Galaxy Note 7. Even though they have been recalled, and the replacements have been recalled, and now they are banned by the FAA from every flight in the U.S. Some people are still using them and sneaking them onto planes.

Li-Ion battery fire/explosion onboard a sealed pressure vessel probably won’t end well. You can’t just pull over and park. This is the idiocracy effect in action.

And yes, because of the “idiocracy effect” now prevelent in our society, perhaps PCB fuses are a good idea.

Cells, capacity, series, power and availability…. what do we mostly use, a 3000mAh 18650? Maybe a 3400mAh? But we’re talking about using 4S, then 2 parallel, right? What about the big 32650? It’s in excess of 6000mAh, delivers whatever power any other cell is capable of and then some (yes, it’ll outperform the 30Q or LG HE4) And 4 inline series would make (does make) a great handle for a honker.

The beastly Trustfire TR-J20 uses 3 of these, I’ve helped build one that utilized 4, and the results can be staggering. It would have the full capacity of 8 18650’s, with the expense of 4 good cells. Something to think about, I’m sure most would want to veto based purely on having to buy those 4 new cells, but doesn’t a light like this warrant a set of matched dedicated cells?

Edit: Just so you know they’re serious contenders, my TR-J20 uses 3 TrustFire 32650’s and puts out 15,000 lumens. Richard built one that needed 4 of the big cells, I built him an extension for the TR-J20 he modified, and it made a whopping 34,000 lumens! These cells are awesome!

Beamshots!!! That’s just insane power

4 x 26650 inline!?
Comedy. The tube will be too thin. And the proportiins would be horrid.
26650 can be used in a 2x2 configuration. With no carriers i think.

As I mentioned up a few posts but you keenly overlooked, all that needs to be done is bore out a fat tube to fit 26650s, and have thick tube walls. The weight of the thicker walls (by rough calculation) will be minimally more than the weight of the 2x carriers and 4x extra cells that will be housed in the 18650 configuration.
Or if weight is truly an issue, bore more aluminum out, and make a plastic sleeve.

well, 4*26550 is quite big, but how’s about 2s 26550, it’s thick and long enough to not be an idiot looking
and today many people have access to 26550 cell, if you want to make a flashlight for everyone, you need to stick with AA ni-mh battery
but, the vote has decided 8*18650, so, nothing can do now
A changeable Tube would be better, for those who dont have and hate dummy cell

I can assure you there was no vote. 8 was always the final spec. I’m only discussing 4x 26650s to put ideas out there even though we all know the GT team will ultimately decide what goes in to the light. And that in itself is not a bad thing, we can’t keep debating for months on end we will never get anywhere with it. I think the hold up now is reflector sourcing

We can do the vote but I assuming that 95% will chose 8×18650 option!

So can we stop discussing about that.

18650 are most available battery on the market and at the moment you can buy 4 Panasonic 3400 mAh on GB sale for 11$. Also what charger would accept 4 26650, or 32650 at same time? With 4S2P we have that option to use only 4 cell’s and have a spare for the backup…

If it is a weight balance only issue,so as to put 4 only 18650s,it could be possible to make the battery tube from ss,which is way heavier than aluminum,so there would be a better balance.I have a Astrolux ss and I know.

please added me in… by the way any timeline plan?

I think it’s high time to stop discussing all kinds of options, variations, possibilities and whatnot.
.
*New project
Aim:
BIG thrower that surpasses the latest super throwers like the TN42*

- easy build to keep cost down

- user friendly

  • simple design so that as much as possible will want to buy & use it
    .
    I propose to stick with the long tube, 8 cell configuration. Preferably like so that it can be used with just 4 cells, 18650 only.
    EVERRYONE has 18650 cells and the chargers to go with them.
    Let’s not make this an endless discussion, however interesting, and keep the end goal in mind.
    .
    BIG thrower that surpasses the latest super throwers like the TN42
    .
    Grtz
    Nico

Will update the list late
No 4-8 18650 in two parallel carriers that need 4 cells wired in series it is.
(I am eyeballing some old notebooks :wink: and besides with 2,5A at the LED any 18650 will do and I saw the 3400 Panasonic’s for $11,11 at Gearbest recently so even buying new cells would not set somebody back that much)

With SRK/Q8 compability at the head side and a 46mm driver people should be able to mid how there heart desires.

I agree that with this mass and sine finning at led level and higher up to avoid rolling away the GT should provide ample cooling even for future IUP140 (Insane Ultimate Performance, you know the LED series Cree will bring above the Extreme High Performance :wink: )

I will say that it depends on price a little…but I am very likely in.

Using 32650’s was considered early on but rejected due to the fact most people do not own any 32650’s. Plus the tube to reflector proportion would be even worse. The 4x 18650 was the biggest we could go and still be hand held to improve the visual appeal.

I have never been a fan of the massive heads with toothpicks for bodies myself.