He noticed that I had a new batch of C01ās 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.
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!
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
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 Iām not sure if thatās 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. Itās visibly deeper red than the 660nm C01S (Cree emitter). The uneven beam is no problem to me, but itās, well, a thrower to some degree. Maybe Iāll sand one of them to get a larger spot.
Iām very happy about this 2nd edition C01ās 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 wonāt order from China anymore. Simon @ convoy is the only exception. This 2nd edition sounds great.
to address the āBattery vampireā question, I`v done a test and they will work right down to 0.46v! maybe even lower if I let it, but the light at that voltage isn`t really usable anyway, the led looks just about lit even in the dark.
But the caveat is that you need to be at a higher voltage than that to get the driver board to fire up in the first place! and once it does you have to leave the light running and not turn it off at all else it wont turn back on again.
I`m not sure what the minimum trigger voltage is, I`m guessing at least 0.7v, but it Will run a battery down to Well below this if you just leave it running
A small addition to that, an effect that helps a bit: almost empty alkaline batteries tend to recover their voltage a bit when the load is taken away, it may take some time. So even when you switch the light off at say 0.5V and the light will not turn on again, after a while you may measure over 0.7V again, maybe enough to fire up the chip. Once the light is on the voltage nose-dives back to 0.5