Thanks, picture is worth 1000 words.
I just want to show my support for this project so I'll take 5 x 3200K and 5 x 5600K. If they put out a AA version I'll buy at least 10.
I don't know how this is going to be shipped but it'll be great if Sofirn list the lights on their Aliexpress store, that way shipping won't be a problem for people who aren't in the states.
I just want to ask that the driver board's contacts be covered with a thin brass plate like the Jetbeam JET - I MK. I just can't stand the Fenix E01's bare copper contacts (so much that I had to break out the soldering iron and tin the copper on all my E01) as I fear the rubbing action of the twisty head will wear away the copper and the light will fail.
Just want to say great job making this project happen.
I do not think that a brass plate on the driver is going to happen, but I understand your concern. I have no idea how may twists it is going to take to wear the copper through but tinning the contact area would also be my own solution. At least the contact strips on the driver are extensions of a larger area that goes further under the solder mask, so if you think you are close to wearing them out, there is enough “meat” close-by for the solder to hold. You could even scratch away some solder mask and solder two thin flakes of brass on it for a final solution.
Btw, Sofirn is going to make the trit hole a bit smaller and the magnet hole a fraction larger, so that both have a better fit.
They are still sorting out the potting and I got no clear answer yet if they are going to succeed in getting it right. I now suggested to Barry that I’d rather see no potting at all than the mushy pea stuff that is in my samples. I gave this option for Sofirn because I have little faith in it atm, and because my (my son’s) and Sofirn’s brutal testing showed that the light is pretty robust already without a functional potting.
There is indeed going to be a group buy, for the people on the interest list, to get the light a bit cheaper than retail, no details yet how it will be arranged. Barry did sort of warn that the lights for the group buy will probably be only in black (I did respond that some people would be disppointed by that). I asked for the prices, for the gb and retail, but I did not get them yet.
If it is not too late, I would be interested in 2 pieces of each
I have EDC-ed the 3200K C01 for a week now, as a second light next to my SST-20 high CRI triple and it is growing on me. Before I got these samples I was concerned by the wide 60 degrees leds but now I like that nice even floody beam, it is really pleasant and nothing like the ugly Fenix E01 beam. When playing with it when there’s ambient light around it does not impress, but in total darkness it does its job very well: close-up at 10 cm it gives enough light for proper illumination, for reading a book the amount and the spreading of light is very good, and when your eyes are dark-adapted it lights quite an area in front of you: if every other light fails when you are lost in the woods at night, this light will get you home. (you have over 40 hours of light on a AAA alkaline).
Thanks for the reply djozz it would be nice to have the brass plate contacts but at this sub $10 price point I'm more than happy to tin the contact pads myself. Thanks for making this project happen!
djozz, thanks for the update on this! It is good to know that the holes will be re-dimensioned 
I won’t say a word about potting because I know nothing about it! If Sofirn sorts it out, I guess it would be a good “extra” to keep things in place! But seeing your son’s test…I believe it will be a strong light after all :smiling_imp:
The only thing I would be a little more “bored” (not upset), is about the “black lights for all” on the group buy :zipper_mouth_face: Most of my collection is black, but I was really expecting this to come in different “flavours”.
In this way, I guess that for me and for many other people it would be pertinent to know:
a) the GB price and the “normal” prices (I know you’re on it)
b) if Sofirn will still do “coloured” versions independently of the GB (I say this because I may change my choice and get 1 black light of each tint on the GroupBuy, and then 1 or 2 coloured lights of each body colour, of each tint)
c) any clue if a diffuser will be an option as extra? (or even better, can you point the bezel’s edge diameter?)
Once again, thanks for your work on this
Bezel diameter 14.5mm, length 71.3mm
I have only asked once for a diffuser, and forgot about asking for it more often. I ask many questions, some are answered, others ignored, it is easy to overlook the questions that get ignored unfortunately.
Thanks for the measures I was trying to see if the diffuser of the Nitefox K3 would fit, but it’s a no-go, the head is larger!
Well, no issue about that ! I guess communication must be difficult sometimes and it is better to focus on the main aspects, in this case, the flashlight itself! That’s what we need to get the hands on 
Again, thank you for all
The head diameter is pretty close to the E01, and reportedly you can use a chapstick cap as a diffuser on that light. That will probably reduce the lumens more than a dedicated diffuser, but in a pinch, it should be an option.
I think that given the price point of about 6 bucks. I would easily take 2 or 3 of these. I’m not the biggest fan of twistys now that there are so many side switch lights. But I think that for the few dollars they cost, they wild make back up, back up lights, glove box lights, tool box lights and gifts.
As a newbie to all this I would take 4 off the 5600k. 1 for each member of my family.
Is there an option to omit the tritium? I am not opposed to it, but will not be able to carry it into work…
Also, will the “reflector” portion of the head be polished any further than the 200grit that it currently appears to be?
The light will no have tritium or a magnet installed from factory, it’s up to the buyer to put those in themselves.
As said above, there’s holes in the tail of the light to put put a magnet and/or a titium vial in yourself, but neither is provided. The reflector will not be further polished. The polishing idea was way more relevant for the design idea to make the reflector parabolic than it is for the simple cone that is the final shape, you will probably see no positive effect of polishing in the current design, or even worse, it may introduce beam artefacts.
But you make me wonder what stops you going to work with a AAA-twisty with trit installed?
Maybe “hazardous chemicals” are banned at his workplace? :person_facepalming:
Please add me to the list for 2 of each lights. Thanks. PJ
Could be something more reasonable like he’s working around sensitive measuring equipment. There has to be some medical scanners you should not have that stuff around.
Yeah, it was just my failed attempt at a joke. Carry on, folks. Nothing to see here. :disguised_face: