Lumintop BLF GT94 ( 4 x SBT90.2, 1.65mcd ) NOW AVAILABLE @ Neals: code NDGT94 gives $ 150 off

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Texas_Ace
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Looks like a beefed up MT09R. Should be interesting depending on how it was designed. They could either get it right or very wrong.

I see it having a big issue with heat and it is in another class vs the GT94 seeing as it looks to be around a ~90mm head vs 120mm.

Worcestershire ...
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Sorry, I meant his review of the GT94!

California_Prepper
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Yeah I’m waiting for that as well to see how big of a difference there is.

my9221
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pearlriver wrote:


Crazy guess what it s?

See freeme’s post!
Worcestershire ...
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No-one else is biting – no idea! The knurling looks Catapult V6-like, that’s all I can say. Put us out of our misery!

California_Prepper
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It’s a Haikelite. I stay away from those.

Texas_Ace
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Ok, just took a little time to do some quick measurements and look at the technical aspects of the GT94. VOB will be making a video review with beamshots and all that good stuff when he gets his light and has some time (have confirmed he has one coming).

This time my light got a little scratched up in shipping, seems someone is shipping the sample lights a bit differntly then the production units lol. Thinking about recommending that they attach the handle in shipping and use the foam to hold it in place in the box.

Overall everything looks fine on my sample.

Calibration is correct on mine.

The bathroom lumen test (won’t fit in my sphere) shows something around ~18-20k lumens depending on what calibration I use (needless to say it is not a precise measurement).

This falls in line with what I was expecting though and shows they are being driven very well, should be around ~30A of current at that output aka ~450w like the normal GT4.

For throw I got 1.4Mcd or 2,375M of throw.

This light has about 1/3 less lumens but gains 3x the throw vs the GT4.

It should be noted that this measurement is far from ideal as humidity is high and my throw measurements are almost always lower then others. This was also after the output tests and using HG2 cells vs VTC6. Longer range for the test would also improve numbers I am guessing. So I would not be surprised to see 1.5-1.6Mcd from others tests.

VOB has a light coming as well and it will be interesting to compare numbers, I always tend to round my numbers down so they are generally worst case numbers, I leave best case numbers to others lol.

The tint is good for a CW light, in the low modes before the main channel kicks in there is a green hue like the SBT90.2 is known for but as soon as the main channel kicks in it turns into a really nice bright white. I personally prefer NW or WW but I could live with this CW, which is high praise from me lol.

I then ran a thermal test by setting it on it’s side (like it would be used in the real world), in a room with ambient air around 27c. No airflow to speak of. Disabled the thermal stepdown and set it to turbo and let it run.

It started out at 30C and after 4 mins it was at:

60c hottest point in fins
50c at button
40c battery tube
33c handle

at 8 mins it was at:

76c hottest point in fins
68c at button
60c battery tube tapering to 50c
37c handle

at 12 mins it was at

87c hottest point in fins
77c at button
71c battery tube tapering to 61c
39c handle

Notice a trend yet? The even tempreture rise shows it has a good thermal path.

at 16 mins it was at

93c hottest point in fins
85c at button
77c battery tube tapering to 68c
45c handle

LVP kicked in at 17 mins (cells were already used some for earlier tests) with basically the same temps. The cells when pulled out were around 75c, VTC6 are rated for 80C, so just within spec.

I then hot swapped to a fresh set of cells to see what would happen if it got a bit hotter and let it get up to 105C before shutting it down.

During the ~1 min that it took me to swap carriers the light cooled down to ~83c to give an idea of hot much heat it was shedding even without airflow.

The light still works fine and no damage. I let everything cool down, recharged the cells and tested output again and actually got slightly higher numbers (slightly higher voltage cells most likely).

So basically the same thermal performance as the normal GT4, confirms they are using about the same amount of power.

The light will handle disabling the thermal protection but it is not recommended to run it until LVP except in an emergency / testing situation. The cells while still in spec if you are using VTC6 are pretty close to the limit and could be past the limit on lower quality cells.

So apply common sense if you disable the thermal control.

If you leave it at the top of the ramp instead of turbo you should easily be able to handle that power level until LVP with much lower temps and double the battery life or more due to less voltage sag etc.

California_Prepper
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Impressive!

Texas_Ace
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My Giggles prototype family:

I forgot to include the chuckles side of the family, the mini and micro lol.

richbuff
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Quote:
This light has about 1/3 less lumens but gains 3x the throw vs the GT4.
I am visualizing the beam performance and the beam profile, and I like what I see, and I think that only this light has both this much throw and this much power. There are other lights nearby in the flashlight universe, but they are either significantly less power or significantly less throw. Nothing against them, I have them, I like them, but I don't have this one.

 

This light is currently the first and only offering in the sixth class of 90.2 flashlights: SBT90.2 emitter, multiple emitter, size of reflector = large.

I have SBT90.2, single emitter, small, medium and large reflector classes filled. All good there.

SBT90.2, multiple emitter, medium size, this class was recently announced in another thread on this forum.

SBT 90.2, multiple emitter, small size: I will have to wait for someone to put this class of flashlight forth.

This light, multiple 90.2, large size, is currently a must have to achieve completion of the six classes of 90.2 flashlights.

 

 

Rev 22:15

maildroid
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I got my gt4 today so awsome thanks texas ace and neal . Can I use the battery carrier in the reg gt in this ? Just curious.

"Let your lite shine "

Texas_Ace
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maildroid wrote:
I got my gt4 today so awsome thanks texas ace and neal . Can I use the battery carrier in the reg gt in this ? Just curious.

No, it is only for the GT4 / GT94

California_Prepper
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So has it been verified 100% that it will be possible to just purchase the gt94 head for those of us that already own the gt4?

Texas_Ace
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California_Prepper wrote:
So has it been verified 100% that it will be possible to just purchase the gt94 head for those of us that already own the gt4?

I have not heard it from an official source, it kind of surprises me if so to be honest and I would not expect much of a discount if the head is sold separately.

It is possible, just not sure the savings will be worth it.

maildroid
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Ok thanks Texas. You the best . Now can you design a headlamp that can go long with a touch of flood Wink

"Let your lite shine "

tatasal
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Texas_Ace wrote:
California_Prepper wrote:
So has it been verified 100% that it will be possible to just purchase the gt94 head for those of us that already own the gt4?

I have not heard it from an official source, it kind of surprises me if so to be honest and I would not expect much of a discount if the head is sold separately.

It is possible, just not sure the savings will be worth it.

GT94 head only will be available for sale to anyone.

Majoroverkill
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California_Prepper wrote:
It’s a Haikelite. I stay away from those.
Thumbs Up

Doug S.

mgracia85
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tatasal wrote:
Texas_Ace wrote:
California_Prepper wrote:
So has it been verified 100% that it will be possible to just purchase the gt94 head for those of us that already own the gt4?

I have not heard it from an official source, it kind of surprises me if so to be honest and I would not expect much of a discount if the head is sold separately.

It is possible, just not sure the savings will be worth it.

GT94 head only will be available for sale to anyone.

Will it also be vice Versa? If we buy the GT94 will the GT4 head be available also?

I love my wife’s toy poodle

tatasal
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mgracia85 wrote:
tatasal wrote:
Texas_Ace wrote:
California_Prepper wrote:
So has it been verified 100% that it will be possible to just purchase the gt94 head for those of us that already own the gt4?

I have not heard it from an official source, it kind of surprises me if so to be honest and I would not expect much of a discount if the head is sold separately.

It is possible, just not sure the savings will be worth it.

GT94 head only will be available for sale to anyone.

Will it also be vice Versa? If we buy the GT94 will the GT4 head be available also?

Yes, either way.

Coyotehawk
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tatasal wrote:
mgracia85 wrote:
tatasal wrote:
Texas_Ace wrote:
California_Prepper wrote:
So has it been verified 100% that it will be possible to just purchase the gt94 head for those of us that already own the gt4?

I have not heard it from an official source, it kind of surprises me if so to be honest and I would not expect much of a discount if the head is sold separately.

It is possible, just not sure the savings will be worth it.

GT94 head only will be available for sale to anyone.

Will it also be vice Versa? If we buy the GT94 will the GT4 head be available also?

Yes, either way.

To TAs point, what would the expected cost difference between the gt94 head and whole flashlight?

tatasal
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Coyotehawk wrote:
tatasal wrote:
mgracia85 wrote:
tatasal wrote:
Texas_Ace wrote:
California_Prepper wrote:
So has it been verified 100% that it will be possible to just purchase the gt94 head for those of us that already own the gt4?

I have not heard it from an official source, it kind of surprises me if so to be honest and I would not expect much of a discount if the head is sold separately.

It is possible, just not sure the savings will be worth it.

GT94 head only will be available for sale to anyone.

Will it also be vice Versa? If we buy the GT94 will the GT4 head be available also?

Yes, either way.

To TAs point, what would the expected cost difference between the gt94 head and whole flashlight?

At this point, we still don’t even have the GT94’s price, so it’s difficult to speculate.

Majoroverkill
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All the GT94 needs now is a bat symbol cover cap Silly I can’t wait! Any rough idea of the cost?

Doug S.

tatasal
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Majoroverkill wrote:
All the GT94 needs now is a bat symbol cover cap Silly I can’t wait! Any rough idea of the cost?

I suppose you mean the price…. No idea at the moment, sorry.

Majoroverkill
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tatasal wrote:
Majoroverkill wrote:
All the GT94 needs now is a bat symbol cover cap Silly I can’t wait! Any rough idea of the cost?

I suppose you mean the price…. No idea at the moment, sorry.

Thumbs Up

Doug S.

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Unimpressed. Since many people don't know or don't care about light faithfulness, this is what you get.
Make a perfect CRI thrower, and it will allow you to see better than any other whatever flashlight.

Even professional racers put HID lighting to shame (which is to be expected), and bear in mind HID usually renders colors better than these @#$% leds.

FF5 for the win! Big Smile LoL!

Please avoid fully quoting lenghty posts, namely with nested quotes. Trim quotes down to the essential. Helps with neatness and legibility. Thanks.

The human mind, and its programming, is at the forefront of a particular battle of The Light vs evil dark forces. Nearly every human being on this beautiful planet “Earth” has some sort of negative mind programming in its mind. And you better take care of your mind programming, or someone else will in this wicked world.

Majoroverkill
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Barkuti wrote:

Unimpressed. Since many people don’t know or don’t care about light faithfulness, this is what you get.
Make a perfect CRI thrower, and it will allow you to see better than any other whatever flashlight.


Even professional racers put HID lighting to shame (which is to be expected), and bear in mind HID usually renders colors better than these @#$% leds.


FF5 for the win! Big Smile LoL!

Opinions very Big Smile

Doug S.

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mapsgoo wrote:
_*Thank you for giving us this useful information *

Da heck? Sick

Sick Sick Facepalm Ughh Tired
Texas_Ace
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Ok, not sure how I suggested anything without backup, spam bot posted, I pointed out that spam bot posted.I t was meant as a joke, not serious. Wink

Not like I actually think Biden is capable of posting online, much less hiring someone to do it for him.

I edited my post so as to not trigger people though. Silly

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Texas_Ace wrote:
My Giggles prototype family:

I forgot to include the chuckles side of the family, the mini and micro lol.


I have Acebeam K70, TN42,R90C,R90TS,BLF GT,Astrolux MF04,Astrolux MF04S,Acebeam K75,and I look at those new ones and I am confused if I should by one more and which exactly. Smile

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