Ideas for Sofirn 5mm light:
- A hex head. Doesnt roll away. Better grip for a twisty
- a trit slot in the tail
Please also read this comparison review:
This Thursday I am going on a camping trip for almost 4 weeks in the mountains in Northern Italy. In this period I will be without Internet access. Given the recent developments I would like to transfer the supervision of this thread to a team.
Is there anyone interested in joining this team for coordinating this special edition BLF light made by Sofirn?
I will be around until August 11th, and can maintain the list. A team like for the Q8 or FW3A seems not really needed for this light since the design will be mostly in the hands of Sofirn, who are really capable of making it. A extra hand for the list would be handy though.
Barry answered a few more questions:
-the body can be made in three colours, he asked which colours we like. I see a pagelong discussion coming up 
, perhaps a poll should solve that.
-about the driver: yes, it can be made to fully drain an alkaline, in fact they claim they can make the same driver as the E01
-I asked if the current could be 30mA, Barry said it was possible but was concerned if that would reduce the lifetime of the led and so make the light less durable. I estimate that 30mA will be alright but is there someone with more experience with these leds who has knowledgable input?
-apart from this Yuji version for BLF, Sofirn will likely make a common white low CRI version with more output too. I suggested also that a version with red led would be popular, and perhaps 365nmUV and he answered that if demand would be there that could easily be made too (but AFAIC there will be no interest list for that in this thread, seems a bit too complicated to me).
Color: I opt for grey
I don’t like to search in a dark place for a black item.
in for 1
Djozz: thanks for helping out with the list!
IF this project is going to happen with Sofirn, with both tints and at $6, I am interested in 2 lights: 1x3200K and 1x5600K !!
I like how the things are going 
@ djozz about :
Yup, I guess a poll will be a better solution! However, isn’t it better to check on Sofirn first to check what colours they are willing to offer?
Even I am not a tritium user (so far) I am also with joechina on this, if possible:
By the way here is the dataset for the BC series Yuji 5mm led:
The current it lists is 20 mA, with an absolute maximum current of 30 mA. However perhaps someone more knowledgeable can translate what this means for real world application in a flashlight.
Regarding CRI: the minimum Ra is 93, with a typical R9 value of 60.
A CPF member verified the claims made by Yuji: Yuji BC 5mm LED Stress Test - Graph and Images | Candle Power Flashlight Forum
A trit slot (like the Lumintop Ant below) sounds nice, it depends on the design if it lengthens the light. I will do the suggestion, and will also ask which colours they can make.
Still interested after the switch to Sofirn.
Might as well put me down for 4 - two of each tint.
I am interested in four total (two of each)
In for 1 5600K version
Still interested. Two each for me. Option to have one trit installed would be nice
Interested in 5600k 2pcs.
For colors, I’d love to see a red or orange. I find these easier to find in the dark than black, and the ‘champagne gold’ ano always looks cheap to me.
Are we doing interest already? I am interested.
Interested in one of each, and thanks!
This was pointed out to me in a message.
I am too busy to run another project right now but can give you some pointers on setting up the Group buy if anyone needs help.
I would be glad to help setup a group buy… but my free time comes and goes… so I dont want to take it on by myself…