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

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Maverick1947
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TA, you can remove my name from the missing bag list. Neal refunded me since it never came. Thank you.

There’s no replacement for displacement.

JasonWW
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Longtom wrote:

Texas_Ace – That’s a good idea. I will do 10m as requested. Here is the result of that test:
10m = 10.9 yards = 32.8ft. I got 10500 lux, (double click turbo) centered on the collector.
Does that sound correct?

I’m not sure what you mean by “centered on the collector”.

I measure out my distance from the sensor on the wall to the emitter. I turn the light on turbo and then go to the wall and move my lux meter around in the hot spot to find the brightest part of it.

To calculate your 10,500 lux back to 1 meter you go 10500 × 10 × 10 = 1,050,000cd.
To find the throw distance to take 1,050,000 × 4 = 4,200,000. Then find the square root of that and you get 2,049 meters of throw or a bit over two kilometers.

This sounds right in line with other people’s measurements.

I’ve heard some people get slightly different results with the GT if they measure it at 15 or even 20 meters. It seems to depend on how the beam is focused.

You can also try measuring the TN42 at 10 meters and see if it’s around 6,500 lux. I think that’s what it should be close to.

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JasonWW
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Maverick1947 wrote:
TA, you can remove my name from the missing bag list. Neal refunded me since it never came. Thank you.

Okay.

Also, I still have not heard anything from Neal or Leo about the Issues list. Does Leo exist? Smile I’ve never heard anything from him.

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Longtom wrote:
Oh that’s a pulse modulated driver, isn’t it?

JasonWW – Yes, I did de-solder one of the wires, and I double checked my meter was on DC. I have a Fluke 87v. But, like I said, that’s a pulse modulated driver, isn’t it? I’m not going to get an accurate reading unless I record it and measure the pulse widths, right? The duty cycle.


On this I have no idea. I would assume it would read normally. Some DMM just don’t read amperage accurately due to resistance in the leads and connectors. I always use a clamp style ammeter.

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Longtom
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JasonWW wrote:

I’m not sure what you mean by “centered on the collector”.

It means with the center of the hotspot of the beam centered directly onto the light collector (the sensor thingy) of the meter at the requested 10 meters.

JasonWW
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Longtom wrote:
JasonWW wrote:

I’m not sure what you mean by “centered on the collector”.

It means with the center of the hotspot of the beam centered directly onto the light collector (the sensor thingy) of the meter at the requested 10 meters.

No, that’s not such a good idea. The very center of the hot spot can sometimes be the dimmest area. Look at this pic of my L6 and you can see the center is definitely dimmer.

The GT at 10 meters might be a different story, but I would still move the sensor around to find the brightest part of the hot spot.

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Newlumen
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I have got 1700 lumen with the TA tube.. it could have been around 2000 lumen if the light doesn’t escape from the opening..

So yea .. blf gt is doing around 2000 ballpark.

F9_D1_DE07-3045-4741-_A97_B-_DDF844_A0_B03_E

Longtom
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JasonWW wrote:
Longtom wrote:
JasonWW wrote:
I’m not sure what you mean by “centered on the collector”.
It means with the center of the hotspot of the beam centered directly onto the light collector (the sensor thingy) of the meter at the requested 10 meters.
No, that’s not such a good idea. The very center of the hot spot can sometimes be the dimmest area. Look at this pic of my L6 and you can see the center is definitely dimmer.

Yea, of course. Smile I set the meter on “max hold” or whatever the setting is, and move the beam around the sensor. when I’m done, I can walk over and see what I did.

R10500
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Is there anybody who still hasn’t managed to get their GT opened using the strap wrenches? I’ve used the rubber and the nylon strap ones but it always feels as though i were going to tear the strap instead, especially the rubber one. And the GT still won’t budge!

JasonWW
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Longtom wrote:
JasonWW wrote:
Longtom wrote:
JasonWW wrote:
I’m not sure what you mean by “centered on the collector”.
It means with the center of the hotspot of the beam centered directly onto the light collector (the sensor thingy) of the meter at the requested 10 meters.
No, that’s not such a good idea. The very center of the hot spot can sometimes be the dimmest area. Look at this pic of my L6 and you can see the center is definitely dimmer.

Yea, of course. Smile I set the meter on “max hold” or whatever the setting is, and move the beam around the sensor. when I’m done, I can walk over and see what I did.


I’ve found that using max hold can give higher readings than normal. I turn the light on turbo, then wait about 30 seconds or so for the output to drop and stabilize. While waiting is when I find the brightest part of the beam. I move the sensor back and forth around that “brightest” area and see what the highest average reading is.

Then again, my lux readings always seem lower than others. So IDK. Smile

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JasonWW
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R10500 wrote:
Is there anybody who still hasn’t managed to get their GT opened using the strap wrenches? I’ve used the rubber and the nylon strap ones but it always feels as though i were going to tear the strap instead, especially the rubber one. And the GT still won’t budge!

Just a few days ago Kawiboy1428 reported at least two GT’s where the bezel threads were not cut just right or something. I dont think these were group buy lights.

From Kawiboy1428

Quote:

I have only done 5 BLF GT’s, 3 of which were my own. I thought I was going to have an Aneurysm on 2 of them, getting the bezel off, even after I loosened the head, it took 2 of us and 2 Huge Rigid Strap wrenches to do it! 

I didn’t even want or need to remove the reflector. I wanted the head to be seated and tight after I shimmed the reflectors up, and then just tighten the bezel to hold the reflector. The heads were no match for the Rigid wrenches, the bezels on 2 them were.

The 2 that were the hardest to get apart was due to thread pitch mismatch/galling, metal/ano pick up between the threads, I doubt it could have happened from over torquing/distortion, it looked more like thread pitch or diameter mismatch during the threading process. The other problem with getting them off is contact, the bezel has less contact then the head does. Then you have the thin bezel sides, with a strap wrapped around it, as your putting rotational force your also collapsing the threads onto each other. I say galling, because when they were removed, there were black flecks of ano, slivers of metal with thin spots of bare metal on the inside of a few threads.

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sp5it
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Just a word of warning for future Lumintop customers.
Me and others still have unsolved shipping damage replacements.
Also we are ignored when asking about that.
I wrote Lumintop 6 days ago PW on this forum, they said, that someone will reply me shortly.
6 days and nothing.
Beware guys. No one cares about our broken lights because of Lumintop poor packaging.
Mike

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R10500
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well that’s just splendid. thankfully my 2nd GT hasn’t exhibited smoking, but i wonder what i should do with this one now. Any chance that Lumintop will send around that tool they use to open the head up?

teacher
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R10500 wrote:
well that’s just splendid. thankfully my 2nd GT hasn’t exhibited smoking, but i wonder what i should do with this one now. Any chance that Lumintop will send around that tool they use to open the head up?
Smoking?? Did you ‘smoke’ the reflector on one of yours??

As far as LT sending the tool around to open the head, I think the chance of that happening is just about zero. Wink

It you have access to a big sturdy vice use that (as has been previously described)… the result will be the same.

You never know how a horse will pull until you hook him up to a heavy load./"Bear" Bryant 

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zelee
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sp5it wrote:
Just a word of warning for future Lumintop customers. Me and others still have unsolved shipping damage replacements. Also we are ignored when asking about that. I wrote Lumintop 6 days ago PW on this forum, they said, that someone will reply me shortly. 6 days and nothing. Beware guys. No one cares about our broken lights because of Lumintop poor packaging. Mike

same as me, i wrote both to leo and neal but they went silent until this day Sad

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I am kind to everyone, but when someone is unkind to me, weak is not what you are going to remember about me.

R10500
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No…hope not anyway since when i turn it on turbo and the grease evaporates immediately, the smoke just hovers around in there and it’s gotta settle down eventually. 6 months after receiving it after all the anticipation for this lol yes i’ve been looking around for a cheap one, vises of that size cost almost as much as the GT for some reason around here and i’d rather sell it to someone who can open it than throw that cash down the gutter

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R10500 wrote:
when i turn it on turbo and the grease evaporates immediately, the smoke just hovers around in there and it’s gotta settle down eventually.

Grease can’t evaporate immediately. Based on the accounts of a buyer here, if there is still some liquid flux on the mcpcb it has to be heated up for several minutes to get hot enough to start smoking. When that happens it settles on the reflector right away.

Are you maybe seeing something other than smoke? Maybe water vapor or something?

Where do you live? Are there any mechanic shops around that will let you use their vise? None of your friends have a vice?

Do you have a set of rubber strap wrenches? Have you tried one around the upper head and one around the lower head?

Here’s another way.

AlexGT wrote:

I used 2 strap wrenches, my bed and my whole body weight to open the head… it wasn’t that bad!

Steps First attach 2 strap wrenches like this, make sure you tighten them up real good

Then put on the edge of the bed, the bed will keep the light from moving and slipping and lock one of the strap wrenches

Last, hold the head so it doesn’t move and use your whole body weight on the other strap wrench to open it, the switch assembly will slowly start turning

Done!

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JasonWW
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zelee wrote:
sp5it wrote:
Just a word of warning for future Lumintop customers. Me and others still have unsolved shipping damage replacements. Also we are ignored when asking about that. I wrote Lumintop 6 days ago PW on this forum, they said, that someone will reply me shortly. 6 days and nothing. Beware guys. No one cares about our broken lights because of Lumintop poor packaging. Mike

same as me, i wrote both to leo and neal but they went silent until this day Sad


What happened today, you heard from them?

Or do you mean they went silent, period.

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xxx
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R10500 wrote:
Is there anybody who still hasn’t managed to get their GT opened using the strap wrenches? I’ve used the rubber and the nylon strap ones but it always feels as though i were going to tear the strap instead, especially the rubber one. And the GT still won’t budge!

I have no strap wrenches. But i just can open gt head using diy strap. l Make ut using unused belt, and some pieces of hollow iron as handle.

Currently in mobile, will take some pic and upload its.

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Sorry to hear that sp5it and zelee.

Hope there is some help and team can push neal or lt to solved yours problem.

sp5it
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JasonWW wrote:
Or do you mean they went silent, period.

Silence. They keep ignoring my emails.
Mike

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zelee
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JasonWW wrote:
zelee wrote:
sp5it wrote:
Just a word of warning for future Lumintop customers. Me and others still have unsolved shipping damage replacements. Also we are ignored when asking about that. I wrote Lumintop 6 days ago PW on this forum, they said, that someone will reply me shortly. 6 days and nothing. Beware guys. No one cares about our broken lights because of Lumintop poor packaging. Mike

same as me, i wrote both to leo and neal but they went silent until this day Sad


What happened today, you heard from them?

Or do you mean they went silent, period.

no reply from both of them, now i got expensive junk at my storage

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I am kind to everyone, but when someone is unkind to me, weak is not what you are going to remember about me.

sp5it
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Is there anyone could help us get replacement parts? I have expensive paperweight since March…
Mike

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sp5it wrote:
Is there anyone could help us get replacement parts? I have expensive paperweight since March…
Mike
Just my .02…. but these guys need some serious attention & relief.
It has been way to long… they need it now.
Just restating the obvious……. Thumbs Up

You never know how a horse will pull until you hook him up to a heavy load./"Bear" Bryant 

 .................................. "Slow is Smooth, Smooth is Fast" ...................................

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Just to confirm, has anyone ever gotten a response from this email address? leo@lumintop.com

All my emails go unanswered.

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teacher
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Just to be clear about what I said above. I am not blaming anyone on the team.
Lumintop knows & has been well informed about these problems. Lumintop needs to get with the program & get these matters resolved…. post haste. No excuses….

You never know how a horse will pull until you hook him up to a heavy load./"Bear" Bryant 

 .................................. "Slow is Smooth, Smooth is Fast" ...................................

       Texas Lumens Flashlights / M4D M4X Deals : sign up - save $$$$  

         Rudeness Level _ mΩ _ {width:70%} _ LightWiki _ LED Tint Chart  

      Xlamp size chart _ BatteryU _ Flashaholic? Need Professional Help???            TheOriginal _ TAB _ LightSearch _ BatterySearch _ 14500's _ DiCal 

 

                                             

sp5it
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JasonWW wrote:
Just to confirm, has anyone ever gotten a response from this email address? leo@lumintop.com
All my emails go unanswered.
Last email from Leo I had in April. He wrote, that I can send GT head for repairs or fix by myself. I responded, that I just need replacement parts and never heard him again.
Not responding multiple emails from different accounts.
I wrote PM here to Lumintop user, they replied, that they forwarded it ti Leo and he will respond with a bit of delay. It waj July 21.
Now even Lumintop PM is ignoring me.
Sorry, but it is not what I expected from them.
Mike

Think of how stupid the average person is, and realize half of them are stupider than that. George Carlin

 Anyone offended by my signature please fill Complaint Form. Thank you.

JasonWW
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sp5it wrote:
JasonWW wrote:
Just to confirm, has anyone ever gotten a response from this email address? leo@lumintop.com
All my emails go unanswered.
Last email from Leo I had in April. He wrote, that I can send GT head for repairs or fix by myself. I responded, that I just need replacement parts and never heard him again.
Not responding multiple emails from different accounts.
I wrote PM here to Lumintop user, they replied, that they forwarded it ti Leo and he will respond with a bit of delay. It waj July 21.
Now even Lumintop PM is ignoring me.
Sorry, but it is not what I expected from them.
Mike

Are you confirming it’s a valid address?

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teacher
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Is leo@lumintop.com a valid address Jason??
I think that is where Mike said he sent them. From various accounts of his own.

You never know how a horse will pull until you hook him up to a heavy load./"Bear" Bryant 

 .................................. "Slow is Smooth, Smooth is Fast" ...................................

       Texas Lumens Flashlights / M4D M4X Deals : sign up - save $$$$  

         Rudeness Level _ mΩ _ {width:70%} _ LightWiki _ LED Tint Chart  

      Xlamp size chart _ BatteryU _ Flashaholic? Need Professional Help???            TheOriginal _ TAB _ LightSearch _ BatterySearch _ 14500's _ DiCal 

 

                                             

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teacher wrote:
Is leo@lumintop.com a valid address Jason??
I think that is where Mike said he sent them. From various accounts of his own.

I’m trying to confirm if anyone has received a response from that address.

Texas Ace Lumen Tube calibrated with Maukka lights

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