I’m confused as to the Sofirn SD05 versions: is there (or was there) just one LED and the driver version of it? The Zero Air review lists Luminous SST 70 LED but I’ve seen XHP50.2 and/or XHP50B being used (what’s the practical difference between those three?) and the same goes about the driver (the Zero Air shows fully regulated output, but is it still the case?).
Meanwhile, I found this review by @CLB
That was a few years ago and the XHP50.2 has been mentioned. Is it now something different still?
And one more question on this light: how to choose the appropriate 21700 cell for it for instance from Vapcell?
I figured roughly that at some 3000 lumens max the LED should draw less than some 10A. Is that correct?
If that is not too far off, then all of those Vapcells should do? But how to choose one?