I think that someone did that for the Yuji led version, maybe even me :person_facepalming: but it is probably buried in this long thread somewhere, and this Sophia version will not be miles different. Think the same curve as above but starting at 7 lumen, less fast decline and stretching out to over 40 hours.
Thanks, sounds very reasonable.
The cross section is funny and inspiring as well 
There is a runtime test of the 2018 Yuji version near the end of this review:
It made it nearly 10 hours of regulated output on a 900mAh NiMH cell. Since it is the same driver, and the forward voltage of the Sophia is very similar to the Yuji, performance of the new batch should be very similar.
With the higher initial voltage of an alkaline and their higher capacity at low loads, it should do a little better with alkaline.
I would plan to do an alkaline runtime test with the ceiling bounce app when I receive mine, but I don’t think I have any fresh alkalines in my house. I use NiMH for all important applications, and for everything else, I’ve found that the battery recycling bin at work almost always has plenty of cells in it that are over 1.5V.
One more thing for this thread.
On request of my 10 yrs old son.
He noticed that I had a new batch of C01’s and he remembered the fun of torturing it 1.5 years ago, so he demanded a fresh test. Who am I to deny anyone a flashlight test? 
, so there we went, and with him 1.5 years stronger I was not entirely sure. But the C01 (a black and potted one) survived fine again, battered but fully functional.
djozz, I’m totally new to this forum and I already like you so much. You are so lovely and so committed to this community. :heart_eyes:
Actually, I post less and less because of other stuff happening in life, but I like the C01 and I had more time this week than usual
I`v ordered a couple more of these Sophia leds today, but if my son even Thought of doing anything like that to my lights, I`d whack him so hard not even Google would be able to find him!
Scotland just passed a new law on that, you may want to look up where England stands on the subject of wacking off-spring 
Just got a few of the colored C01. I was expecting Desert Tan and green.
I gave some to my friend who is a Vet Doctor, right away he said that both of the lights are almost a perfect color match for a healthy dog poop
Barry, now I am wondering what did your guys mix in the anodizing powder
Baha, I ordered the same colours as you.
Well, at least I’ll have a handy reference when inspecting dog poop!
I just got mine. I didn’t realize desert tan = brown.
So, can some one post the link for magnets?
Very pleasant beam. Need this in AA!
From the pictures, I would have called it root beer. Certainly a more appealing name than the other suggestion.
In case you have any orders there planned, it appears Convoy offers the right size:
https://convoy.aliexpress.com/store/group/magnet/330416_254414841.html?spm=a2g0o.store_home.pcShopHead_12391894.1_2_7
Are the brown ones potted?
My brown one is not potted. Are there any Banggood links? I don’t really buy from Aliexpress.
I got these ones for my C01S from FastTech: https://www.fasttech.com/p/4113703
I noticed that at 90 degrees on a smooth metal surface, the light may slip a bit (though I’m not sure if that’s about how strong they should be.)
I think you must have a bit of luck with these magnets how magnetised they are. Sellers like banggood and Fasttech for sure will not check their magnet batches, a bit less magnetised will go unnoticed. I was lucky with a small batch that is pretty good (Fasttech, 2 years ago), my C01 sticks fairly well. Any new magnets I may buy from supermagnete.de, they claim a reputation for good magnets.
All my blacks have been potted, but none of the green, brown, orange, and red ones. Nice colors, btw.
The 670nm C01 is nice. It’s visibly deeper red than the 660nm C01S (Cree emitter). The uneven beam is no problem to me, but it’s, well, a thrower to some degree. Maybe I’ll sand one of them to get a larger spot.
I’m very happy about this 2nd edition C01’s with some more incoming . Thanks, Sofirn! 
Edit: and thanks, rngwn for making this possible in the first place.
My little Yuji light is one of my favorites. If Sofirn makes these available on Amazon like they do for most of their lights, I will buy several more for gifts, even if they cost a few dollars more. But I won’t order from China anymore. Simon @ convoy is the only exception. This 2nd edition sounds great.
thanks for sharing your experience, thats the first report of non potted green and red C01…
I guess green are mixed, some potted, some not potted…
same with Red, you report not potted, my C01 Red are potted.
consistently inconsistent lol