[PART 1] Official BLF GT Group Buy thread. Group buy officially closed! Lights shipping.

There is a German modder-constructor,who makes lights with collimator lenses,at over 600000cd,but they are aspherics.You can see one of these lights,in CPF.
But they are pretty expensive.

I like small!

There is a Chinese light with well focussed lenses giving a circular spot without spill.I’ll find a video to see.

I made a simple dedomed XM-L2 + 35cm fresnel lens thrower that does more than 5 million cd (it is a fun device), costs were 50 dollar in parts mainly because the fresnel lens (a cheap plastic device that was sold for ‘solar cooking’) was bought expensive on ebay, a cheaper source would bring that build back to less than $30.

The point is that achieving the 1 Mcd is easy, it is not rocket science neither is it expensive, but doing 1+ Mcd in an attractive convenient package that is as compact and lightweight as possible is the challenge. The fresnel lens thing is a big ugly wooden box, we do not want that in this project.

Well for me (and it seems not picked up by any1 :frowning: ) this would be the light Old Lumens wrote about he wanted to see made.
He said:
Big reflector
Long srk style tube for 2*4 cells

The 120mm is much bigger then the 86mm he used in a build

This is where 4S2P comes from
And because of the massive heat sinking XHP could be driven hard
And well pencil beam, I’d like marker beam (you know sharpies being thicker then pencils :wink: )

Also kicking it back in I’d like to round up the sale price to the next x0 or x5 to get at least $5 so $5-$10 per light sold for Justin and Valerie.

A smaller lens based light would be another project (shame MEM zoned out) and yeah would like to see it and even do it but not until the Q8 is in the hands of all that want one and this giga thrower is at the stage the Q8 is in right now. So if people want that faster I’d day, go for it and put me on the interest list :wink:

Wavien collars…

Oh, YES and dedicating it to OL

Here is another name suggestion

BLF IT, or intense thrower

Please add me to the list for 2 - thanx!

Then we have two extreme directions in this discussion:

1) The ‘OL way’: big reflector big output led (think XHP70), with consequently a fair number of batteries and large capacity heatsinking
The OL way is heavy and will not have massive throw, you will stay well under 1 Mcd. But the big bright hotspot will be very impressive.

2) The maximum throw way: big reflector small die led (think XP-L HI), can be driven with two or even one battery, heatsinking is very modest.
This can be made very compact, the size is the reflector and not much more, and be featherweight. The throw with a 120mm reflector can be up to 1.5 Mcd. It is an extreme pencil beam!

And then there is everything in between…

Subscribed…

BLF LS (Light Saber) or
BLF TM (Throw Max)?

Great project!

Yes PLEASE!!! :smiley: :smiley: :smiley:

Depending on pricing, at least one and if possible one as host (I would one with XP-L HI IF over 1Mcd - but I still would want one with Oslon Black Flat for max throw, minimal usabilty and max fun)

Grz
Nico

Probably will if made by Astrolux

I am in. Depending on price. :+1:

I am in for one light, too!

I really don’t think so. Nobody would pick up a chunk of solid black metal with a seriously big polished reflector on the end and associate it with some cheap yellow plastic “lantern”. And if they do then I don’t value their opinion very much.

Yes please! This is what I’m hoping for out of this project. Dedomed XP-G2 lights are really impressive on the meter. I know; I’ve built a few myself. They’re not very useful though. I want a super-thrower that’s actually got a useful beam at a distance and that requires just a bit more “width” and overall output than a 900 lm, 1 Mcd XP-G2 would be doing.

That’s just my opinion though.

I am in.

Is it time for the first poll?
What form will the BLF giga thrower have?
1 plunger
2 reflector and all around in with handle

(Sorry leaving out the lens(es) option that seems totally different project