The BLF GT70 "Giggle Monster" is here! 7,500lumens, 1,500m throw! Group buy Closed!

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Newlumen
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Just joking.. I show you my pic that look like him..

NITEbiker
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T18 wrote:
Glad I logged back in and all the comments are correct, I was thinking myself why am I the only one even mentioning this dented cell business.?
I have so many cells I can throw these 3 away and not even notice the loss.
Also thanks for the camera info TA, I’ll probably do a bit of research before I buy and that’s some good advice.

Yes the new carriers and how the cells stay put is a plus over the old carrier, I could give that 1st carrier a slight shake and a cell or two would just fall out, started putting a rubber band around them.
I did get one pic of the worst cell that looks like one end of the spring was wanting to poke through the Samsung,
But I agree with everything said in the last posts and everyone is correct, except no I haven’t dropped a light on grass and dented the end of the cells it’s always been concrete but I didn’t have dented cells either, matter of fact I’ve never dented the end of cells but have had regular wear and tear on cells where you can see the spring marks but still this shouldn’t happen at all, and a delivery drop with that protective sticker and the packaging as good as it is wouldn’t have done it either but now that’s just an opinion not looking for trouble or a ru** mark, it’s just a good tight carrier and frankly tight is the way it should be, maybe a drop but I doubt that, this pic is probably just that one spring as you can see the one area about center is getting deep like if caused by the bent end of a spring, but as mentioned this isn’t really a huge deal honestly and since I’m apparently the only one with the issue then it’s not really an issue I’d say..??
Edit: I don’t get that sort of marks on the end of my cells even after using them for a couple years so that is unusual.
!{width:70%}[img]https://i.imgur.com/beR73Az.jpg[/img]!

As TA said, WOW! I have never seen a dent that severe from a drop!

My comments about people jumping the gun and getting on the paranoid bandwagon was in response to the person warning of impending lawsuits and implying Lumintop should send more carriers to avoid such an event.

As for dropping lights on concrete, I live quite a way away from much of that; it is dirt, grass and bush where I live. I was rather surprised when a drop on grass dented the positive end of a GA in a Zebralight SC600 HI but hve read quite a few reports of soft terminals on the GA’s. The only time I ever dented the negative end of a cell was a HG2 which dropped inside a bored Elzetta from about 3m up on a ladder. So much for being a weapon light LOL good luck with that on a shotgun!!

Anyway, I still think it was possible for the cells to have been damaged due to handling during shipping. I hope it was that and you don’t have any issues going forward and if not, I hope it is as you suspect and is a spring issue and not more widespread.

Just had to clarify that, I’d hate to tick someone off and cop a rude flag too Wink

T18
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teacher wrote:
T18 wrote:
Just read through all the posts on these carriers and what might have happened is that the 5 rods that assemble the carriers are where the shortening of the carrier occurs,

I measured those rods this morning, and the 1st run rods were 71.31mm long and these new shorter carriers rods are 69.17mm. Doesn’t seem like much but it really is.
Everything else with the exception of the new positive end of the carriers insulator gasket all the parts appear to be the same for the most part, as matter of fact I’m not sure they used different springs at all, so that might mean that they deliberately shortened the rods to make the springs compress more.
(snip)

The rods are shorter T18, but take a look at the ‘end caps’ of the carriers in Mark M’s picture below.

The GT70 is on the left & the GT is on the right. You will notice the end caps on the GT70 (left) are much thicker than the original GT’s (right).

This is one reason for the shorter rods I think.

I’ll say this… the 30Q batteries fit much more securely in the new GT70 carrier. Thumbs Up
.
(pic by Mark M)

Here you can see the difference in thickness of the aluminum.


I missed this post Teacher and yes that is something I missed, I really do not believe there’s anything devious going on like cheapness etc.
But the mistake Lumin made was not clearing everything through TA first, they are in a rush to recover money,
Had they talked to TA then most likely none of this would have been an issue.
One of the biggest problems I have seen since I bought the first batch of cells from Neal is the nipple the Chinese are putting on is awful short, so today I bought 16 more cells from Liion Wholesale and a new Opus, I looked at his nipples, ON THE BATTERIES, and there is a huge difference, a longer nipple would have held the cells in much better, some of mine are so short I can’t tell if their contacting or not.
T18
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NITEbiker wrote:
T18 wrote:
Glad I logged back in and all the comments are correct, I was thinking myself why am I the only one even mentioning this dented cell business.?
I have so many cells I can throw these 3 away and not even notice the loss.
Also thanks for the camera info TA, I’ll probably do a bit of research before I buy and that’s some good advice.

Yes the new carriers and how the cells stay put is a plus over the old carrier, I could give that 1st carrier a slight shake and a cell or two would just fall out, started putting a rubber band around them.
I did get one pic of the worst cell that looks like one end of the spring was wanting to poke through the Samsung,
But I agree with everything said in the last posts and everyone is correct, except no I haven’t dropped a light on grass and dented the end of the cells it’s always been concrete but I didn’t have dented cells either, matter of fact I’ve never dented the end of cells but have had regular wear and tear on cells where you can see the spring marks but still this shouldn’t happen at all, and a delivery drop with that protective sticker and the packaging as good as it is wouldn’t have done it either but now that’s just an opinion not looking for trouble or a ru** mark, it’s just a good tight carrier and frankly tight is the way it should be, maybe a drop but I doubt that, this pic is probably just that one spring as you can see the one area about center is getting deep like if caused by the bent end of a spring, but as mentioned this isn’t really a huge deal honestly and since I’m apparently the only one with the issue then it’s not really an issue I’d say..??
Edit: I don’t get that sort of marks on the end of my cells even after using them for a couple years so that is unusual.
!{width:70%}[img]https://i.imgur.com/beR73Az.jpg[/img]!

As TA said, WOW! I have never seen a dent that severe from a drop!

My comments about people jumping the gun and getting on the paranoid bandwagon was in response to the person warning of impending lawsuits and implying Lumintop should send more carriers to avoid such an event.

As for dropping lights on concrete, I live quite a way away from much of that; it is dirt, grass and bush where I live. I was rather surprised when a drop on grass dented the positive end of a GA in a Zebralight SC600 HI but hve read quite a few reports of soft terminals on the GA’s. The only time I ever dented the negative end of a cell was a HG2 which dropped inside a bored Elzetta from about 3m up on a ladder. So much for being a weapon light LOL good luck with that on a shotgun!!

Anyway, I still think it was possible for the cells to have been damaged due to handling during shipping. I hope it was that and you don’t have any issues going forward and if not, I hope it is as you suspect and is a spring issue and not more widespread.

Just had to clarify that, I’d hate to tick someone off and cop a rude flag too Wink


Ha Ha, All is good my friend, I did understand what you meant and this was really hard to explain without a pic to show what my concern was, I really just wanted people to look at their cells to be safer, it is a weird one.
Just bought 16 new cells with longer posi ends, so I’ll use these from China for what have you.
I’ve been thinking about doing a test with this one cell, like set it up on a nail and have a brick come down and puncture that negative end to see what happens, if nothing then I’ll set it on the band saw and take me a look inside, safety googles, gloves, flak jacket, and helmet at the ready .. Ye ha
Newlumen
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I know my 4” tube is a bit small for the blf gt. I am getting 5850 lumen @ turn on. ( 5 seconds )… is that what you guys getting ?

JasonWW
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Button tops are sold by different companies and can vary in height slightly.

Here is a pic where I removed one from a different battery. You can see they are made from a thin metal and are fairly easy to dent or bend.

It’s total height is about 1.5mm. I think about 1.3mm is what sticks out, but it depends on the wrapper.

The GT carrier needs about 1mm. I don’t think I actually measured it. It’s not a big gap.

If your not sure it is making contact, just measured the carriers voltage. If one or more are not touching, there will be zero voltage.

Texas Ace Lumen Tube and JoshK Sphere calibrated with Maukka lights

Click this to go to signature links. I'm still around, just not reading many new threads.

Mark M
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Newlumen wrote:
I know my 4” tube is a bit small for the blf gt. I am getting 5850 lumen @ turn on. ( 5 seconds )… is that what you guys getting ?

I have the 3.5in and I get around 5200 lumen at turn on, so your numbers look good to me!

teacher
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T18 wrote:

(snip)
One of the biggest problems I have seen since I bought the first batch of cells from Neal is the nipple the Chinese are putting on is awful short, so today I bought 16 more cells from Liion Wholesale and a new Opus, I looked at his nipples, ON THE BATTERIES, and there is a huge difference, a longer nipple would have held the cells in much better, some of mine are so short I can’t tell if their contacting or not.
Yep… I noticed the exact same thing T18. The button tops on those were to short for my liking too. They barely make contact…
And I mean barely. Wink

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Sillen
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Texas_Ace wrote:
T18 wrote:
Anybody know who this is..?

!{width:40%}[img]https://i.imgur.com/g1nQEGS.jpg[/img]!

lol, where did you find that?

That is Neal, who was a major part of the first GT and helped with the GT70 as well.

One of the few people in China I trust to care about the quality of the flashlight as a whole and not just see dollar signs.

Is there a group buy for that Tshirt?

ToyKeeper
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T18 wrote:
Anybody know who this is..?

Neal wearing a UI diagram I made, because of a joke which went a bit too far during the BLF A6 project. I think he was going to send me one, but never did.

Anyway, it must have been a prototype or something, since it seems to be missing some dotted lines.

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How old is Neal? He looks like he’s 12.

Boycott Nike

T18
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TK, yes that was supposed to be the proto and the shirts were to be made for sale here at BLF in your honor and the proceeds were to go to you and Neal to the best of my recollection,
He was still at BG then and I think they got word of it and Neal stopped responding and the shirt just fizzled out and we never heard anything about it again, what a bummer it was. You sure hit a home run with that A6 UI.

I spent all night trying to figure out what happened with that one cell of mine and I found out but it’s nearly 5:30 am here and I am beat so I’ll tell you later what I found.
I didn’t know there were two springs and all springs I’ve seen have a 90 degree bend on the end, but not these outer springs so I got a huge slice on my finger and a big bloody Sunday for me, so heading to bed, will explain later about how sharp that spring wire is.
Good night all.. Sick

mcnugget
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Sorry if this has been answered, but any updates on the warm tint option?

Texas_Ace
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mcnugget wrote:
Sorry if this has been answered, but any updates on the warm tint option?

There will not be a dedicated warm tint anytime soon. It is about a 50/50 chance of 4000k (which some might consider to be on the warm side) and 5000k at this point.

mcnugget
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Texas_Ace wrote:
mcnugget wrote:
Sorry if this has been answered, but any updates on the warm tint option?

There will not be a dedicated warm tint anytime soon. It is about a 50/50 chance of 4000k (which some might consider to be on the warm side) and 5000k at this point.

Okay how about neutral?

Texas_Ace
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mcnugget wrote:
Texas_Ace wrote:
mcnugget wrote:
Sorry if this has been answered, but any updates on the warm tint option?

There will not be a dedicated warm tint anytime soon. It is about a 50/50 chance of 4000k (which some might consider to be on the warm side) and 5000k at this point.

Okay how about neutral?

The neutral tint LED’s should be ordered this week. How long it will take them to get to lumintop is unknown at this time as it will depend on how and where they are ordered.

verge
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T18 wrote:
teacher wrote:
T18 wrote:
Just read through all the posts on these carriers and what might have happened is that the 5 rods that assemble the carriers are where the shortening of the carrier occurs,

I measured those rods this morning, and the 1st run rods were 71.31mm long and these new shorter carriers rods are 69.17mm. Doesn’t seem like much but it really is.
Everything else with the exception of the new positive end of the carriers insulator gasket all the parts appear to be the same for the most part, as matter of fact I’m not sure they used different springs at all, so that might mean that they deliberately shortened the rods to make the springs compress more.
(snip)

The rods are shorter T18, but take a look at the ‘end caps’ of the carriers in Mark M’s picture below.

The GT70 is on the left & the GT is on the right. You will notice the end caps on the GT70 (left) are much thicker than the original GT’s (right).

This is one reason for the shorter rods I think.

I’ll say this… the 30Q batteries fit much more securely in the new GT70 carrier. Thumbs Up
.
(pic by Mark M)

Here you can see the difference in thickness of the aluminum.


I missed this post Teacher and yes that is something I missed, I really do not believe there’s anything devious going on like cheapness etc.
But the mistake Lumin made was not clearing everything through TA first, they are in a rush to recover money,
Had they talked to TA then most likely none of this would have been an issue.
One of the biggest problems I have seen since I bought the first batch of cells from Neal is the nipple the Chinese are putting on is awful short, so today I bought 16 more cells from Liion Wholesale and a new Opus, I looked at his nipples, ON THE BATTERIES, and there is a huge difference, a longer nipple would have held the cells in much better, some of mine are so short I can’t tell if their contacting or not.

With this new shorter battery cradle, will a flat top battery make good contact/connection in it?

Texas_Ace
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verge wrote:
With this new shorter battery cradle, will a flat top battery make good contact/connection in it?

No, the new carriers still have the polarity protection boards installed. These would have to be removed to use flat top batteries.

Better to solder blob the batteries IMHO.

hunter1
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Hi.

My GT70 has the “new carrier” and battery over 67.30 mm will NOT fit..
(You might be able to squeeze something in that is just over, but then I would check the battery for damage afterwards.)

If somebody else has measured something else please update.

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I have an extra set of Stock BLF GT35 battery carriers (better fit for protected batteries) if someone in the U.S. wants to trade for their GT70 shorty carriers, they are like new…?

KB1428 “Live Life WOT

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Mark M wrote:
I would love to rewrite the manual if they would be interested.

So what do you want to change?

If Lumintop keeps the new shorter carriers, I will remove “protected”.

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Texas_Ace wrote:
Mark M wrote:
I would love to rewrite the manual if they would be interested.

I think they already have the manuals printed for this batch but if the changes are worth it they might consider reprinting.

Joechina has been the one working on the manuals up to now (Although the protected cells mistake and any other errors fall squarely on me, he can not correct what he doesn’t know, he has done a fantastic job with the information he is given and the time constraints).

You are welcome to contact him and work on an updated manual and I can pass it along to lumintop.

At the very least we can have it available for download in this thread.

Thank you!

@Mark M
Writing the manual and checking if everything is OK would be easier when the writer has a lamp to compare.
But there is never one. Only asking stuff via emails.
Wink

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I only mentioned that because there are some minor grammatical errors. Not because of the carriers. I was unaware a forum member wrote it. Big Smile

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ToyKeeper wrote:
T18 wrote:
Anybody know who this is..?

Neal wearing a UI diagram I made, because of a joke which went a bit too far during the BLF A6 project. I think he was going to send me one, but never did.

Anyway, it must have been a prototype or something, since it seems to be missing some dotted lines.

@TK
Oh, you made the shirt the wrong way.
Text and pics on a shirt like this need to be upside down, so you can read it.
Smile

verge
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Does the BLF GT70 have a battery low-voltage protection like in the Sofirn flashlights?

How do I know I’m not pushing the non-protected batteries too much when using the flashlight?

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I like blf gt so much and now I own 4. Lol

DA51_E36_B-_DE40-496_E-_B6_A6-1174_AEF3650_E

T18
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I’m fairly sure it will shut down, and I don’t believe you’ll be able to push the 30Q’s to far, you can run this light on 4 batteries, actually I think it will run on one if I recall. I can assure you that there’s nothing to worry about especially when TA is behind the drivers functions.

T18
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Newlumen, are those Astro’s on both ends?
If so how are they ? Been looking at those and thinking about getting one but really they look like knockoff GT’s, still tempted though.. ha ha
I’m Addicted to anything that lights up.

verge
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T18 wrote:
I’m fairly sure it will shut down, and I don’t believe you’ll be able to push the 30Q’s to far, you can run this light on 4 batteries, actually I think it will run on one if I recall. I can assure you that there’s nothing to worry about especially when TA is behind the drivers functions.

I read the user manual and didn’t find mention of auto shut-off when battery voltage is low.

I think that information is worth inclusion in the user manual if Lumintop decided to revise the user manual.

Gives the user more fun in using the flashlight knowing that it will auto shut-off or give some conspicuous signal like flashing of light when the battery voltage reached a certain low-voltage level.

I don’t know what will happen If I let the flashlight drain the batteries down in use. Will it explode in my hands?

T18
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Hey Verge on the first page of the user manual titled Safety precautions which was for the GT XHP35 but same thing as the GT70 it says on section 4,
Remove and recharge cells when the low voltage indications is given by the GT (repeated step-downs in light levels and eventual shutdown of the light.)
Direct quote for you friend, so have fun and no worries.. Smile

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