Hmmmm. I just knocked up a true to size mock up of the GT using a 12v car plug-in light head, and a cardboard tube.
The head is freakin’ close in size to 5ars rendering and the tube is 52mm wide - all I can say is - this will be huge. We knew this of course but seeing it in the ‘flesh’ true to scale, it’s mighty.
What do you mean on the shelf?
How is something on a shelf if it is an online store…?
Joined this forum to buy this flashlight. Lol add me to the list.
Welcome to BLF!
Will update list later!
Hmm please I do not decide anything and am just another BLFer here and part of the team that is working on this with all from BLF who want to contribute.
Only thing I decided was doing a poll on the outside design since the topic lost a bit of friendliness (and that is back so nice 
) and it is just plain cool to see all the beautiful designs.
I think that the closer to something we want we can get before finding a manufacturer the better
If a 120 top ID of the reflector means the ideal depth is 93 I think we should go with that, the input seems very good
Welcome to BLF!
Will update list later!
Hmm please I do not decide anything and am just another BLFer here and part of the team that is working on this with all from BLF who want to contribute.
Only thing I decided was doing a poll on the outside design since the topic lost a bit of friendliness (and that is back so nice ) and it is just plain cool to see all the beautiful designs.
I think that the closer to something we want we can get before finding a manufacturer the better
If a 120 top ID of the reflector means the ideal depth is 93 I think we should go with that, the input seems very good
Was just an ide to see different sizes/shapes of their reflectors…
Some could even contact them “under cover” and hear wich kind of preference they have for best throw?
To give everyone an idea of the size we are dealing here with I added some items to the renderings.
Beer bottle for scale:
Beer bottle as well as this light and this one:
Banana for scale:
Credits to the creators of the beer bottle and banana: https://grabcad.com/library
So it’s going to be a really huge light!
Edit: I am aware of the fact that we haven’t settled on a design yet. But not matter which design, the overall dimensions are similar. So this post is meant as a demonstration of the size in general rather than the size of my design.
IF that one is chosen. Don’t get too far ahead of yourself.
The other lights/ designs will be just as big. It’s not meant to show the size of my design, but rather the scale of the overall dimensions If I’d replace my design with any other one we have it’d be the same size.
Maybe we can even add all designs in one render. That would be great!
NICELY done Frits!
OP updated
design post updated, please let me know if I missed a design (and yes 5ars new render is not in yet )
post 5 reflector updated added:
Here’s the difference between 93 and 112mm deep reflector:
Scale: 10 pixels = 1 mm (first choose ‘view image’ for actual size)
Nice work jerommel! Because I’ve seen this to, but I have been searching the web for a nice diagram to just show what you just have posted.
And for that part, if the reflector is deeper than 112mm we will catch even more light rays…but then we are going (maybe) beyond a outside design that will be “good looking”?
But nice work mr.J!! :+1: :student:
Can you put in a depth measure of 120mm?
The same as the diameter…
Or for that part: put in an extreme “depth” of 140mm in that diagram…
Can you do that?
How about the quality of the captured light?
You convinced me that throw does not increase with reflector depth because of the distorted image of the die projection. Only the corona increases. That is because you capture more light in the top end, but the bottom end is too close to the led and disperses the led more.
Deeper reflector will cut away the spill, and increase costs allover.
Shallower reflector should provide more spill and a smaller corona, and reduced cost.
Take the TK61 which is another way overpriced light and old thrower. It has a shallow reflector and decent throw for a smaller light.
I have download this program to my computer, that can calculate the measures we need for a given diameter/depth.
mscir.tripod.com/parabola/
This means I/we can give the exsact numbers for a given input (diameter/depth)to our manufacturer With this program the diagram it seem to be more efficient with a deeper reflector, because we gather more light rays in the beam, and we don`t get so much spill..
So I need to apologize a bit for my previous post about that 120/93mm measures, cause I just got that number (93mm) out of that given parabola in post #1789
I`m now more conviced that a deeper reflector is the way to go, but a deeper means also a lower measure at that (0.f) focus point. See pictures:
With that in matter I would go for a reflector that measures 120mm in depth as well, but that means a "real depth" of our reflector to be 120mm - 7,5mm up to the focus point = 112,5mm
In another term: that measure from an upscaled TN42 was correct! Hence my apologize... ;)
Yeah the focal length needs to be subtracted from the parabola height to get the actual height of the reflector.
That’s why the graphs I made completely ignore everything below the focal plane and you can adjust the actual height, the height you will get from the manufacturer.
Currently I have a function for intensity at an angle, a function for radius at an angle, and almost a function for total % light captured. Still working on it.
Got a picture of this? It might help to have a real world snap shot to give people an idea of the size.
I don’t think many people truly understand what kind of monster this will be.
Ahh!!
Looking forward to see your final work! 
BRING IT ON MAN!!
That’s cool, would you mind sharing that function? How did you interpolate the curve?
You mean a radiation diagram with the spherical surface integrated into it?
That would be helpful indeed.