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

[JasonWW]

@Texas_Ace

After seeing how well the GT took to the XHP70.2 with a sliced dome (over 1600m of throw!) I am sure that there are BIG gains to be had with a flat black or other LED in the GT.

That said I finally got some proper centering rings printed up for the XHP70.2 and did some testing. By defocusing it slightly I was able to eliminate the dark spot! Only lost a little throw as well, it was still over 1600m IIRC. The beam looked better as well.

I took these quick wall shots during my G35 review with the sliced dome and a 3.5mm tall centering ring (vs the factory 2.5mm, I think that 3mm tall could be the sweet spot).

Closer to what the eye sees (although much brighter, literally painful to look at the reflection):

With the exposure turned down to see the beam a bit better:

Sadly shortly after this I was messing with it some more and something must have landed on the die and caused it to start burning. While trying to fix it I scraped off the Phosphor layer so I now have a mega powered UV light saber (it is super painful to look at, I am scared to turn it on).

So I will be switching to the 80CRI LED next and most likely leaving the dome on it.

Once I get the V1 prototype back I might try another shot as a sliced dome, maybe even an xhp50.2. Or maybe I will try a flat black….

1600m is quite impressive, but the lose of lumens would probably make me want keep the dome on. Experimenting with my L6 taught me that.

Why would you want to go with a smaller 700 lumen emitter? Just to experiment?