How did I miss this thread ? awesome light.
Eta? Updates? Anything?
Nothing, I am guessing they are working on other things for the holidays and I would not expect any updates until next year at the earliest at this point.
they are preparing for production
of course now we want to know more. 
I also just get bits :(
Have they confirmed they are going with the XHP70.2 or is there a chance they will go with the SBT-90.2?
I wonder what will happen with this project now that it’s been announced Lumintop will bring the original Blf Gt back with the upgraded sbt-90.2 led?
I’d like to see if proceed as planned because they are two completely different lights with two completely different purposes.
Now, if they replace the four 70.2’s with four 90.2’s, then I wouldn’t mind so much. That would be a mind blowing light.
This is the idea I pitched to start with then they came back months later with it in the GT instead. Looks like the “gt90” is what they are focusing on for the foreseeable future.
It’s probably cheaper, easier, and faster to put the 90.2 in the already in production GT body than it is to design and setup manufacturing for the new GT4 body. A light that throws 1Km+ is neat, but I live in a city so it’s not something I have much use for, the floodier GT4 would offer a more useful (for me) balance of flood and throw.
Might be cheaper going that route, but, like the OG GT was when it was released, four 90.2s in one light would be ground breaking in and of itself. So I think the demand would be pretty high even with a higher price tag. I’m no billionaire but when the bug bites, you’re gonna buy.
In essence, the reward would be worth their cost.
I’m hoping it’s a case of GT90 getting to market faster with the GT4 following on when it’s ready.
I’m just wondering if the price difference between the xhp70.2 and the sbt90.2 will be worth it. From my understanding the sbt90.2 is around $50 per led. Both LED’s produce around 5k lumens. Will the sbt90.2 be that much better than a dedomed xhp70.2?
You pay for throw, which, if expressed in candela of the hotspot, is directly proportional to the die surface area. The SBT90.2 has a die size of 9mm2 and produces no darker center in the beam and XHP70.2 has a die size of 16mm2 (1.8 times bigger so at the same output 1.8 times less candela in your spot) and has a slightly darker center in the hotspot. The XHP70.2 can probably be driven to a bit higher lumens than the SBT90.2 but it will never get its throw.
Also, XHP70.2 has a dome which pretty much halves surface luminosity by doubling apparent die size. And it’s a flip chip.
These are really a different league….
Forgot the effect of the dome, thanks for the addition Agro. So roughly three times the throw?
Yeah, very roughly 3 times throw intensity.
wont 4 sbt90.2 emitters make this a very expensive light vs the xhp70.2 ?’
they should offer both options imo.
Amen brother. 