Sofirn C01R deep red [sold out, discontinued]

This is an acceptable trade-off for me. It would make it appear approximately half as bright, which is noticeable, but this was never meant to be a powerful red flooder, just a dedicated red flashlight for use in low light conditions.

Perhaps offering the option of XP-E2 Red and XP-E2 Photo Red would be easier for Sofirn? Unlike XP-G3, these 2 emitters seem to be very similar. No additional effort may be needed to offer both as an option, it would probably be a straightforward emitter swap.

I’m also interested in 2.
Thanks!

84 pcs accounted for already. :+1:
Only 116 pcs left to make it happen. :wink:

When … ok, if Sofirn decides to go for deep red, I’ll take 2. Just saying! :smiley:

In for one piece of each LED version.

Put me down for 1 more please

Cześć 1stein, just to be sure...I count this as 2 pcs as long as we don't know what LED we get? :-)

Pozdrawiam, Thomas

Cześć, you are so language gifted. Chapeau Bas! Yes, count me for 2 in this case, thank you.
Pozdrawiam serdecznie :smiley:

Interested.

interested in one

First of all, XP-G3 deep red is also called photo red.

According to XP-G3 and XP-E2 datasheets the actual XP-G3 versus XP-E2 radiant flux difference is very small. Just for example right now Arrow has XPGDPR-L1-0000-00F01 (XP-G3 radiant flux code 32, 500mW @ 350mA and 25°C) and XPEBPR-L1-0000-00D01 (XP-E2 radiant flux code 30, 450mW @ 350mA and 25°C).

XP-E2 is the safe bet in this case, imho.

Gracias Barkuti :BEER: I'll keep that in mind when talking to Sofirn again. I ask them to concentrate on XP-E2 deep red only when testing alternatives to XP-E2 red 625nm. OP will be updated accordingly.

Interested.

Has Sofirn confirmed that with an interest list of 200 they will produce a run?

Hey Lux-Perpetua love this idea, thanks for another custom BLF project. Please up me to 3 in total, maybe more later.
These would make awesome stocking fillers but it’s unlikely the timing will work out.
Nevertheless, good things come to those who wait!

Lux-Perpetua be sure to tell Sofirn to avoid being tight fisted when purchasing the photo red emitters, i.e. to preferably get a high flux bin XP-E2 since the bulk per unit cost differente will be very small.

BLF user koef3 and user Köf3 in TLF tested an XP-E photo red ≈3 years ago. Worth taking a look.

Also, since the C01S driver is rated for ≈1W the driving current for the XP-E2 photo red could be slightly raised without exceeding the maximum rated power. To 450 or 500mA, a current sense resistor swap is all it takes:

Photograph of the stock driver courtesy of djozz. ;-)

Presuming 350mA stock driving current swapping the R27 by an R20 means the current goes up to ≈472.5mA, which is compensated by the photo red emitter's low Vf. This would help making the torch brighter at ≈600mW raw output (close to 25 raw emitter lumens). All in all, it could surpass 20 OTF lumens in high. O:)

2 pls

They are very much interested in making this happen. The only real constraint I was told is an MPQ of 200 pcs. They did not tell when it's gonna happen if it's gonna happen, though. Anyway, I'm confident that they may be able to accomodate this small batch within the next C01S production run.

Your input is deeply appreciated. I will ask them to only consider top flux bins of any XP-E2 red/deep red they could source. Maybe I get to know the exact flux bins their supplier(s) have available to order. I hope to get some results from prototyping with the chance for experimenting with the driver's current. Best would be to have one XP-E2 red and one XP-E2 deep red side by side for direct comparison including outbalanced beamshots. My biggest concern is that some people may feel disappointed about the lower (perceived) intensity with deep red.

For most people the standard red will look noticeably brighter. Those who know will be unconcerned. Complainers can STFU :-D and sell their C01DeepRed to someone else, pretty sure there will be plenty of takers.

It would be nice if they were to market both red (red emitter) and deep red (photo red emitter) versions. The deep red version could be advertised with a disclaimer and a lumen output estimation or measurement (which djozz will anyway carry out in his review).

That would be my favorite scenario, too. But then again, we need to achieve at least 200 pcs MPQ per model, i.e. 200x XP-E2 red and 200x XP-E2 deep red. In my humble opinion, it’d be worth it. Looking back the past days, we already got roundabout 100 pcs accounted for. If things go on this way, the odds are good to have both emitter options available as C01R (= red 625nm) and C01DR (= deep red 660nm) later on.

Since demand for special editions of C01S is extraordinary high (see BLF no ano' edition), Sofirn maybe want to pick up the idea of selling more small batches of incandescent / warm color versions, e.g. XP-E2 red, deep red, amber as well as some ultra warmwhite LEDs like Nichia E21A 2.200K, SST-20 2.700K 95CRI, etc.. This could also attract collectors and completists to buy all versions they have for sale...(just thinking...haha :LOVE: $) )