Lumintop GT Mini (Thower) Beam shots and more!

well no but i want to believe so :slight_smile:

I have a d1s… the beam is tight and intense… can’t say about mini gt yet… hopefully it will be good.

Not an apples-to-apples comparison, but here I got some images of GT Mini CW vs GT Mini NW and also Emisar D1 V2-3A

GT Mini CW (left) vs GT Mini NW (right)

(building is about 125 meters or 400 feet distance)

The second pic has the D1S (3A) on the left and GT Mini (NW) on the right.

For some reason, the GT Mini (CW) looks a bit less bright or focused than the GT Mini NW or the D1S 3A. Maybe it's just the more neutral tints look better at night?

Distance according to Google maps: ~126 meters or ~400 feet (actual distance is a bit more, because that is ground-to-ground-distance, the actual is from a lower ground level pointing several stories upwards to the opposite building at a slight angle)

This is what should happen actually, given equal outputs the neutral white will throw better. The warmer wavelengths are less prone to refraction in the atmosphere and thus travel further.

I think someone tested it at long distance with GT and the test result did not match that theory….
I guess we need more data to draw conclusions.

That was because the CW LED was a higher bin and thus had more lumens then the NW LED.

Naturally higher output will throw further.

If they are the same output the warmer tint throws further. The same reason sunsets are orange and the sky is blue.

so warmer tint regardless how warm it is will always go further then cw light? wow i didnt know that…

If everything else is equal, yes, warmer wavelengths of light travel further.

This is the same reason NASA wanted a 2700k warm white LED in the GT they got.

Today I picked up my GTMini.
Charged to full 30Q and such results:
5.8A on the back of the cap
23 micro Amper drainage (backlight off)
1392 lumen
118kcd
color in turbo 4430K BBL 4D (almost identically as UT02)

Now I have virtually identical performance as my modified UT02 with 1510 lumens. The same range, color, beam … only in a smaller and lighter package. In conclusion, a very nice flashlight.

At what distance did you measure 118kcd?

The measurement was at a distance of 5m and gave a result of 4717. 117877 is the result at 1m distance, calculated.

Thanks for the lumen number… i got 1390 lumen on my mini gt cw with the sony vtc6…

Can’t find it now to check, but I believe the test didn’t compare throw but rather the difference between short-distance and long-distance throw, negating any bin difference.

Oh, you must be talking about a different test then the one I am thinking of, the only one I know of is the one DB custom did where he used a higher bin CW emitter.

Another factor is that camera sensors are also more sensitive to cooler temperatures (which is why they generally use a CW flash as the sensor works best with that).

Also if the air is very clean, then the advantage of the warmer tint is greatly reduced (same reason that the sky is blue when the sun is overhead but orange when it is hitting the atmosphere sideways it has to travel through more of it).

I have seen it with my own eyes many times, in the real world the warmer tints allows me to see further.

All that said, the difference is fairly minor in most cases when it comes to flashlights and getting the tint you prefer is the best choice as that will make you happier overall. There is no right or wrong answer.

Another factor is that camera sensors are also more sensitive to cooler temperatures (which is why they generally use a CW flash as the sensor works best with that).

Also if the air is very clean, then the advantage of the warmer tint is greatly reduced (same reason that the sky is blue when the sun is overhead but orange when it is hitting the atmosphere sideways it has to travel through more of it).

I have seen it with my own eyes many times, in the real world the warmer tints allows me to see further.

All that said, the difference is fairly minor in most cases when it comes to flashlights and getting the tint you prefer is the best choice as that will make you happier overall. There is no right or wrong answer.
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We’re talking about the same test. I managed to find it:
✌ FREEME - ASTROLUX MF04S (XHP70.2) & MF04 (XHP35 HI) - BRASS@.@ - #490 by DB_Custom (with more info in subsequent posts).
I remembered Dale actually measuring throw at distance and remembered wrong. So the results may have been caused by differences in bin.

I purchased one when I was buying the GT70 and I really do like this light a lot.

Did TA make the driver for this mini GT also…?
It would be very nice to get a few of these drivers, very impressive.

One thing is for sure, whoever it is that assembles the big GT’s also must assemble these mini GT’s
I spent hours attempting to get the mini’s bezel off and it’s looking like it’s not possible not without damaging the light so I stopped while I was ahead.
I don’t think Lumin is known for gluing are they?

I was told TA is not going to make driver for the mini gt… not strong enough to make one…

The bezel is glued. Some have a tiny bit of threadlocker, some have a lot. They are gluing a lot of their newer lights. Not the GT, though. It’s just really tight.

TA did not build this driver. It’s based on his Texas Avenger design, though. It is a proprietary driver and not sold seperately. You really don’t want it. If you want a good FET driver for e-switch use, Lexel is the best source. He is moving a bit slower right now due to a hand related problem, but will probably be back to making drivers soon.

Thanks again Jason, you teach me something new and interesting everyday,
I thought about the possibility of it being glued and thought about trying heat but I remember what my bezel looked like after I did that to ano before, sort of a nice brownish color so that idea was short lived.
Not even sure why I wanted to take the bezel off frankly, I just like taking lights apart I think.
Well it is a good little light and yes the big GT’s I bought three of so far and I’ve taken them apart and boy oh boy is that a job.
I read that Lexel was having some kind of surgery on his hand but I do think I’ll take a look at those drivers you suggested when he’s better,
Thanks again as always.

I retest the lumen again after i calibrated the TA tube.

Mini gt cw 1286 lumen @ 5 seconds… ( same as turn on )…