Sofirn C01R deep red [sold out, discontinued]

Does the driver fall out toward the battery?

What kind of glue should be used?

Here are a couple more pictures of the light:

Kind regards
Frederick

Available again now!

LINK

And ordered! :sunglasses:

No, but if you tighten the head to much, you end up with the bezel at hand and the pill stuck to the tube, fully lit. Had this yesterday.

Sofirn used to glue later C01S with red threadlock.

If you’re still producing it - is it possible to again use threadlock on the bezel?

Still says out of stock for me :person_facepalming:

No artifacts:

I promised to mail someone if I found where I had them from, just forgot to whom it was. Jon?

I placed my EBay order for a few Sofirn flashlights on July 3rd (incl. the C01R). The package arrived only 17 days later. Not bad for a parcel that originated in China and travelled all the way to the U.S. during this pandemic.

The C01R packs quite a lot of light for a tiny 1 x AAA flashlight. I’ve already put it to good use a couple evenings this week photographing Comet Neowise. I mostly used the flashlight on its lowest “moonlight” setting (0.5 lm) with a diffuser dome and hung it around my neck with a length of paracord. (The diffuser dome came free with my other purchase of a C01S).

The low soft red light helped me maintain my night vision while allowing me to change settings on my camera or as an aid during lens changes.

Very pleased with this Sofirn flashlight. It is my first Sofirn order, but certainly won’t be my last. Thank you, Lux-Perpetua, Barry/Sofirn and all others involved for carrying this project through!!


Are there suppliers that sell 1-5 pieces of BK-LED-097WB25 in China/Oceania?

I don’t know. Got this link from someone here or over at TLF, don’t remember. Search for the dimensions, they should pop up somewhere else in the world.

When will they make it to Amazon USA ?
Thanks

ZL H502pr arrived today after almost a 2 month wait due to a lack of flights between Shanghai and Australia.

Sofirn C01R arrived within a few weeks.

Here are some amateur side-by-side photos:

H502pr set to 0.003 lumen and Sofirn C01R on it’s lowest mode:

H502pr at 1 lumen and Sofirn C01R on it’s lowest mode:

It’s that bloody cat again!

Sofirn C01R highest mode:

H502pr highest mode 100 lumens:

C01R is a nice little thrower while the H502pr is very floody without much throw beyond a few metres. I was pretty sure that the H502pr UI would be much better than the twisty C01R, but I had overlooked that the ZL has the older UI. There’s a risk that I could accidentally click to High while trying to long press for sub-lumen.

After not noticing that Sofirn sell diffusers the first time around, Unheard mentioning a honeycomb lens, wandering down the d-c-fix film rabbit hole, and then oweban mentioning Orange C01S…. I decided to order another C01R, a diffuser and an Orange C01S. Sofirn have already shipped!

Received the C01R. It is a neat little light with a special colour! A minor critique: the beam is ok but not perfect, more major: the middle mode is way too close to the high mode, it is not low-med-high but low-high-bithigher. If Sofirn decides to expand this 3-mode UI to the other C01S types they should have another look at finetuning it.

thanks hope they correct the middle mode early

Thank you guys! :+1: I will let Barry know about these issues. A word about the beam quality: I assume Sofirn did not or even does not have any alternative optics available so far. So, they had no chance but to use the same optic they used for SST-20 4.000K 95CRI. That leads us to following point…

Thank you Unheard for posting some great information about the microlensed TIR optic BK-LED-097WB25. :THUMBS-UP: I'm confident Sofirn will find this or an alternative optic that may diffuse the beam more evenly and eradicate the downsides of the clear-narrow beam spot lens they used so far. At least such a microlensed or frosted optic will be mandatory for C01S E21A to avoid tintshift. I hope they can order a significant amount to sell as a spare part or accessory for those who want to change the beam characteristics.

About the middle/high mode again: with a fully charged Eneloop the high is significantly brighter than middle (although the middle should still be lower), but with the battery halfway there is no difference anymore. Makes sense of course but still the behaviour on a not fully charged battery is something you should consider when you design the UI.

Thanks Djozz. I agree, the mode spacing should ideally go in line with the discharging of the battery, i.e. there should be a distinct visible difference between high and medium with a partially discharged battery. Do you have an AAA alkaline (1.5V) available to test this scenario again? I just want to make sure it's not only happing with 1.2V NiMH batteries. I don't know if a constant mode spacing will require hardware or firmware changes but I will do my best to transmit this information via Barry to Sofirn's engineering.

Thanks for the suggestion trying alkalines. The mode spacing is much better on alkalines, and the light runs hotter too.

Makes me wonder if the Eneloop that I used is still good (it was fully charged). It does have a lower voltage than an alkaline but should be much more current-capable.

Another possibility is that the driver is particularly sensitive to the voltage difference between alkaline and NiMh.

Courtesy by Djozz, the actual, measured dominant/peak wavelength of C01R:

Thanks Djozz for the spectrum.

I guess I won’t worry about the difference between 660 and 670 for eye health light sources.