Sofirn C01R deep red [sold out, discontinued]

[Lux-Perpetua]

Nice to see some interested members from TLF, too. :-)

Sofirn will try to use the red anodization, maybe we even get to see a "deep red matte" anodization. Mode order LOW - HIGH is also agreed. :THUMBS-UP:

[Unheard]

@Lux-Perpetua

Sofirn will try to use the red anodization, maybe we even get to see a “deep red matte” anodization. Mode order LOW - HIGH is also agreed. :THUMPS-UP:

Thank you :+1:

Should be dicernable among all those other red C01S and C01 lights :nerd_face:

[Lux-Perpetua]

Yes, I would also prefer some darker red with a matte finish as red is used for C01S already. Let's see what Sofirn can do about it. Another option could be "no ano" clear aluminum but I think this would interfere too much with the C01S "BLF edition".

[Barkuti]

@Lux-Perpetua

… Another option could be “no ano” clear aluminum but I think this would interfere too much with the C01S “BLF edition”.

Interfere? It would likely be the other way around. The C01S “BLF edition” is rarely available, it may have to do with Sofirn ordering scarce and small batches of un-anodized C01S bodies. If we give 'em more incentive to order un-anodized bodies we would have both red and 4000K versions more readily available.

[Lux-Perpetua]

Interesting point Barkuti. You could be right about that since Sofirn is waiting for their C01S stock to deplete, so that the next batch can be offered with most wanted features (low-high mode order, for instance). I don't know what they are up to next but this could be a great opportunity for joint activities, i.e. reconsider the entire C01S production schedule and integrate the red so called C01R into the whole sales strategy. I'll check with them tomorrow again.

[MascaratumB]

@Lux-Perpetua

Interest list is live, see OP. I hope I have counted everything correctly. In case of any corrections, let me know please. So far, we have gathered 54 pcs already. Sofirn will try to source some XP-G3 and XP-E2 deep red for further testing. I keep you updated.

Cheers, Thomas

You can change mine for at least 2 lights
Depending on price, I may be getting more!
Thanks for your efforts on this

[Lux-Perpetua]

Está feito, MascaratumB. :-) Obrigado pelo teu interesse.

[amishbill]

Up my interest to 2, on the chance the price is really nice.

[Chatika_vas_Paus]

Two for me please

[netprince]

Interested

[blind-eye]

A deep red matte finish sounds amazing. Please bump me up to three.

[Lux-Perpetua]

TLF member oOFOXOo from Austria did a great job and put a new tint look onto the illustration, see picture in the OP. This is „Crimson Red“ (RAL color code 030 30 40).

[shirnask]

Interested!

[adam7027]

@Ryzbor

Interested only in deep red.
620nm is to rosy-orange-ish for me instead of red.
There are already a lot of 620nm lights on the market and sourcing 620nm XP-E2’s in single quantities is super easy so having a photo red led would make this light stand out.

+1 :+1:

I can even see 730nm (which is called ‘Far red’), but my eye sensitivity is noticeably worse there (but I can still pick up that distinct deep red color very easily - and it is still much-much better than looking into 780nm near-IR LEDs). But, when I compare it to an ordinary 625nm red, the latter just looks like a very deep orange (or ‘light red’).

660nm could be a sweet spot, as the human eye still has fairly good sensitivity to that - despite it is a ‘redder’ red.

Speaking about special light sources, there are even less ‘lava’ or ‘ultra warm white’ flashlights around.

But there could be a potential, I mean, the BLF community already accessed and tested a few very good emitters:
Luminus Xnova Cube (1800K, 90CRI)
Nichia E21A (which has 2000K CCT variant with CRI 95 and R9 above 90)

For some applications, I could even imagine using a 1300K to 1600K CCT emitter, but unfortunately I haven’t see a good one yet. The trick in having a non-monochrome (but still very ‘dark adapted eye friendly’) light source, that one still can perceive colors (just blue light is making up a very tiny part of the emitted spectrum, and cyan/green light is still rather slim), and it covers most of the situations, where previously 625nm red lights were used, but it is easier to see with.

So, if I think about alternative C01 versions (just hypothetically, based on my needs/preferences/wishes), I would be in for C01L (‘Lava’), and C01DR (‘Deep red’).

By the way, I do know, that doing negotiations with flashlight manufacturers is a meticulous task, so I thank you for your efforts.

[MascaratumB]

@Lux-Perpetua

Está feito, MascaratumB. Obrigado pelo teu interesse.

Muito obrigado, Thomas!
Danke sehr!!

[Photonica]

Interested, prefer Deep Red, but would buy a “normal” red.

[808Hi]

Interested in 2

[AndyMac2272]

Interested in 1

[Skuzapo]

Count me in for one

[iamlucky13]

@Lux-Perpetua

I’m afraid that XP-E2 photo red (I guess it’s being called “deep red”, too now) could look too dim/too dark as the output is less than XP-G3 deep red. Please bear in mind that 660nm is closer to the edge of the human eye’s visible spectrum, i.e. 100 lumens of deep red (660nm) light will appear significantly less bright than 100 lumens of red (625nm) as the eye’s reception is less sensitive on 660nm.

I think it should be noted that the definitions of the lumens and lux already take into account the varying sensitivity of the human eye to different wavelengths. In contrast, the related terms radiant flux and irradiance do not take that into account.

So 100 lumens of 660nm deep red should appear the same intensity as 100 lumens of 625nm red.

The difference in practice is you get fewer lumens for the same power.

So while Cree rates the red XP-E2 for up to 80 lumens at 350mA, based on the function that approximates the sensitivity of the human eye, the photo red XP-E2 probably only puts out about 15 lumens (Cree only rates it in mW, not lumens).