Sofirn C01R deep red [sold out, discontinued]

Personally, I'd like to be pessi...sorry realistic. :-D With that said, I do not expect it to happen before December 2019. The benefit about being realistic is, I feel more relaxed about delays and I am more delighted in case things suddenly go faster than expected. Please note that my guessing is more or less reading tea leaves. ;-)

“…C01S with LH351D 2.700K 90CRI…”

Ooooooooo! That might be nice! :heart_eyes:

… made from copper, of course.

:smiley:

I could use an extra red light for night photography, so interested in deep red, thanks!

Two more for 4, previous post 128.

1 more for me please. Previous post# 162

In for one of each wavelength, hopefully deep red can get up.

Interested in 1

Interested in one.

Thanks for coordinating this project.

John.

Hi I am olles,
please add me for 2 more (totalling 3) - especially if there will be the deep red version (with wine red anodisation this would be perfect)! That would be 93 % then.
Thanks

Update (10/24/2019):

Sofirn is unfortunately unable to source XP-G3 deep red from their suppliers. They can only order XP-E2 deep red. I asked them to order some samples for testing with a C01S driver to make a prototype (checking tint quality, lm/W ratio, optimum current for low/high mode). As monochromatic light is difficult to measure in terms of lumens the output quality will also be "measured" by the human eye. I hope they can do two samples, each with a different LED, i.e. XP-E2 red 625nm and XP-E2 deep red 660nm and put them side by side for comparison. Maybe there's a slight chance to get both versions but that is pending further testing and Sofirn's decision in terms of the expected sales forecast.

Furthermore, they will probably use the standard red body color as "wine red" will be difficult to realize by their anodizing factory. Maybe it's also a matter of costs for a small-size batch like this one.

OP is updated accordingly.

I’m still happy with that. Thanks

The XP-E2 660nm is a recent quality led and is optically more suitable than XP-G2 (bit more throwish) so it will not get much better if you insist on 660nm.

Thank you for the update Lux-P. Anyway, I’d be happy if this project just comes into life. XP-E2 red is not a bad LED too, so it’s a not deal-breaker for me, hope for others too.
Just have in the back of my head Clemen’s store and E21A red on 10mm mcpcb. A nice mod idea… Have one spare waiting to be fixed :smiling_imp:

Looking at LH351H datashhets (especially the V2 option), it seems to be a bit more effective than XP-E2, but probably not worth the hassle of sourcing it.
Anyway, I’ll be interested in 660 nm option if it happens.

as long as its 660 nm its fine with me.

interested in 1

Interested in 2—one of each tint.

(also, woot first post: )

XP-G3 Photo red, in stock at Digikey:
https://www.digikey.com/product-detail/en/cree-inc/XPGDPR-L1-0000-00F01/XPGDPR-L1-0000-00F01CT-ND/10131730

I know the discussion is pretty far along, but since people were interested in the XP-G3 and Sofirn is leaning away from it, here’s a comparison of available deep/photo red options. It looks to me like djozz is right. The XP-E2 is not far behind the XP-G3 unless you need the higher power handling:

MFG Series PWL (1) Output at 350mA I (max) Notes
Cree XP-E2 PR 660nm 18 lm (2) 1.0A Many sources
Cree XP-G3 PR 660nm 21 lm (2) 1.5A Digikey
Luminus SST-10 DR 660nm 16l m (2) 1.5A Mouser, Digikey
Samsung LH351H DR 660nm 18 lm (2) 1.0A Digikey
Nichia R E17A 650nm 31 lm 0.7A Virence, phosphor converted

(1) Peak wavelength (PWL) is power based. Dominant wavelength (DWL) is perception/luminosity based. Different sources may use different specs. 660nm PWL ~= 645nm DWL
(2) Datasheet gives output in mW. Lumens estimated using a luminous efficacy table at peak wavelength.

Note that the Nichia E17A’s output is a bit misleading. Just having a peak at 650nm instead of 660nm is as much as a 70% advantage in lumens, and being phosphor converted also helps, but shifts the DWL down to 618nm, compared to 645nm for the others in the list. It also has the lowest maximum drive current, and the highest forward voltage. The phosphor converted red, however, should look more like a filtered incandescent than the typical monochromatic LED.

Luminus has an SST-20 Deep red that is rated for 3.0A maximum, but I don’t see it in stock anywhere.

Please add another one (two total) for me.

Thank you,

John.