The original idea, or so I recall, was to build the thrower that would fit between existing margins. Big lumens, big throw, a catchall light for a lot of folks. So I was just looking at the parabolic curve used by the top throwers, trying to see how the Sofirn team deviated from that maximum mindset. The wider shallower reflector should have a much more general use beam profile and as such appeal to a broader audience, but I thought it was supposed to be more about throw. I probably forgot what it was all about and then the parameters changed with the hand off and all that…. I know the guy that has the original prototype though (When it was a Kronos thing) and so I know what they were originally targeting, even if they gave up on it.
If Sofirn was designing the maximum throw HID then again, a very specific formula for throw would have to be applied to the reflector for it to work properly. A parabola is a slice of a cone, true, but the size and overall shape of the cone to begin with directly influences results. Like your typical mega horsepower sports car getting new tires, a tire is a tire is a tire…. or is it?
I ’think’ you pretty well remember correctly. From what I remember it did start out a dedicated thrower. I guess that changed a bit over time. This should have a useful beam hopefully. Looking forward to hearing the first feedback & reviews. :+1:
Suuurrreee…… ’some’ might say or think that. … 
This light has nothing to do with the Kronos.
Wut? That's why this light even exists, as stated in the OP - because of the K70...
The K70 was supposed to be a better ThorFire S70S - better overall design, more power, etc., whcih is why I signed up for it early on wayyyy back. The SP70 is now a better K70, whcih is fine with me 
We abandoned all the Kronos stuff and started fresh.
We, Jason, really? Or THEY?
Still, they took it over before they made the changes, then they did whatever they wanted to… in a very familiar fashion. Which is why we now have an orange peel shallow wide reflector…
I like the look of what Sofirn did, obviously… I bought one. But of course I will free to change it to suit me like I always do.
I’m not sure what your getting at. Both Sofirn and BLF worked together. You disagree?
Obviously it’s not a 50/50 collaboration. Sofirn has the final say since they are the ones making it.
I wasn’t getting at anything, I said they changed the plan and they did. I don’t usually hint around as I myself am no good at reading between the lines.
Sofirn said they were going to make an extension tube for the Q8. I spent over $200 after talking with Tracey about this and I made Ham’r, based on the extension tubes, and the plan was for it to use multiple such tubes. I spoke with Barry as well. And then THEY decided not to make the tubes. I’m into this for $230 and then some based on what THEY said, but… whatever. I still have a cool light but after going to a lot of trouble to do the 458 thing based on 4 quads, 5 drivers, and 8 cells it no longer is going to be possible to have 8 cells, so I pulled the .458 Ham’r brass out of the light. I seriously dislike being made a liar. There, that’s what I’m hinting at. Say one thing do another. Good enough?
To add to that, they did show us 7 extension tubes working together powering a Q8. If they decided not to make them they could at the very least let me in on one of them as we had talked about it all so much and I was personally into the plan to such an extent. But Nooooo! Like, they kept you so well informed through all this, right? Uh, huh. Not.
Actually, the factory prepared the material for the extension tubes. Sofirn already spent thousands dollars on the tubes, we want it to be fulfilled as you do. But factory has no time to make them so far. We don’t wanna give an easy promise.
furthermore, even though we showed in the video that the tubes work with BLF Q8 and Sofirn Q8, we still worry about the compatibility.
You know, the threads changed a bit during all those batches.
Please keep give more time and see.
Max Power (W) 29 W
Max Light Output (lm) 4292 lm
Maximum Efficacy at Binning Conditions (lm/W) 181 lm/W
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Do I read it wrongly? I am excited for SP70. It is brighter than the cree parameters announced
Cree specs are meaningless. We should be closer to 100 watts.
According to the tests: https://budgetlightforum.com/t/-/49020 and https://budgetlightforum.com/t/-/48661, 100 watts is about 14 amps - is that about right for the higher performance cells, which is said in the OP to be about 7000 lumens?
Just got a shipping update, the SP70 arrived at JFK, could be couple days away now.
My SP70 just returned to Sofirn 
may be due to battery inside.
That sux. 
. What country are you in?
Yeah. It’s a FET driver and with high drains cells it should pull some pretty good amps. Sofirn was never able to tell me how many, though. Maybe it will be the 18A-19A I get with my Lexel driver L6, but I’d rather be conservative until I can measure it myself.
Thank you for that information Sofirn, appreciate it and will look forward to the day…
My HD batteries were sent back by customs apparently so Sofirn have sent out some more today. My SP70 should arrive this morning according to Royal Mail.
I know BLF member DTA recieved his. He did a quick video showing the beam.
The folks in the street do not seem to care about the searchlight around them :party: