Can you please post a link? That's interesting.
Only the SD05 without timer stepdown and SP31v2.0 without timer stepdown.
SD05 without timer stepdown is here: (I’m not sure if the ones in Sofirn AliExpress still have stepdown or no stepdown though), they also increased the lumens rating from 2500 to 3000 lumens:
https://sofirnlight.com/sd05-diving-flashlight-3000lm-p0016.html
I can’t seem to find the link for the SP31v2.0 without stepdown anymore. I recall there was only 3 units available when I grabbed one. It appears to have been de-listed. Order just shipped out, so I guess it may be a few more weeks before I can check them out.
The SD05 without timed stepdown ist the new version of it. I don’t think the old one will be manufactured anymore. But of course, if there’s still some stock, it will be sold. Point was, the SD05 always had temperature regulation, but Sofirn wasn’t trusting it as I understood it. This gave rise to critics on the TLF.
Does the SP31V2.0 have temperature regulation? I used to own one but never noticed. With more than 1000 lumens it should better have something like that.
are these shipping now ?
Sofirn replied to my e-mail last week, and said the lights would be shipping “next week”!
I’ll be waiting for it 
Call me a Doubting Henk.
Seeing is believing.
C01R deep red limited or always on sale?
On their site no more free shipping over 20$ as before
I will ask Barry.
Please ask also if will be on sale on AE site
Get those lights finished.
We’ll try.
Do. Or do not. There is no try.
Want!
xref:
670nm deep red led helps eyesight
Sofirn should send a couple of these lights to this university. You never know what comes of it.
Sure. However, my impression is that Sofirn wants to avoid additional commission which eventually increases the sales price. I do not know how many C01Rs are left on stock but personally I would rather see them offered on Amazon than AliExpress. I could imagine that some people are reluctant buying because of extraordinary long shipping times from Asia to anywhere in the world. Selling these lights from local (Amazon) warehouses may improve that situation a bit.
Good point! :+1: As stated before, C01R deserves a bit more attention. I always had scientific purposes in mind when thinking about C01R.
‘top hat’ 5mm LEDs:
I’m tempted, but how bright can they be at 20mA? And with vf > 1.5V, I presume they do not work in the usual hosts, or am I wrong?
I would like have an S2+ style Triple with XP-E2 Red - SST20 2700K - Osram IR or UV
2 modes for each Led,better if with the possibility of choosing which LED to turn on first.
Do you guys have on plan to develop it?
Usual problem with UV LEDs and triples is that the polycarbonate optic blocks UV wavelengths.
Should be ok in the usual AAA hosts with boost driver, like the Sofirn C01. There is not the problem with burning off excess voltage that lineair drivers have, these drivers are actually current controlled, so boosted to the correct voltage.