New Sofirn K6 – [NO LONGER ACTIVE]

REFLECTOR AND LENS

- Triple XHP50

  • or Quad XPL

EMITTERS AND MCPCB

- I would choose 3 XHP50 over 6 XPLs, because the reflectors with 6 have a relative small reflective area due to the neighbor cutouts

- Option to get 3 CRI90 XHP50

  • MCPCB designed dual footprint with XHP50 thermal pad non conductive (1206 Resistor pad bridge for example)

DRIVER

  • 2S/2P Boost for 3 XHP35/50 12V

USER INTERFACE

- from Off short click last memorized mode or first mode of mode order if disabled

- long click from Off Moonlight, remove c) hold 1 second to get a memorized mode

- 4 clicks from on as well lock out

- Option to Moonlight with down to 0.1 lumens in ramping

- option to enable disable memory

- in modes an option to enable/disable moonlight and change mode order

  • 3 short presses for strobe advance with long click to beacon and battery blink out, normal click to last mode

THERMAL STEPDOWN

- if this is not calibrated and based on MCUs spread this will be not good, some will be too high others too low,
I calibrated a hundred Narsil drivers and the spread is +10°C/-15°C sometimes even 20°C

- get this with a external NTC on the MCPCB and raise temp to 80°C

  • the thermal step-down should use a slow dimming down instead hard step-down’s

OTHER ASPECTS

Put me down for testing and review
I will even prefer a early pre production sample

How about 3*XPL and 3*XPL-HI ?? and 3 orange reflector and 3 smooth reflector? use by turns?

Lexel and Jackie, suggestions added above! Thank you both :wink:

BTW 1: If anyone feels I left something out of the given suggestions, please let me know! I may fail on this :person_facepalming:

BTW 2: the links for the general thread and the posts #2 and #3 where already sent to Cissy! I will send it to Tracy as well, being the Sofirn rep on BLF :wink:

:+1:

Is there any pre-requisites for being in the reviewer interest list? My experience with Sofirn lights is based on older models (but I have 2 newer AA/14500 lights in the mail) and would like to contribute do making a better product, bering in mind that the recent Q8 is kind of it’s kind and a new light would benefit from not aiming at the exact same spot

How about six 4000k Luxeon V emitters with a MT03 type floody beam?

Set high level around 2400 lumens and give it enough thermal capacity so the light can run continuously without stepping down.

A tripod mount would be nice as well.

Hum, pre-requisites, not that I know!
As I mentioned, concerning this light, I will list the names of the interested people for test / review, and then the manufacturer will decide on who to choose and send them! I don’t know the exact criteria - if it exists - , but it may be based on the contribution for this light’s discussion! :+1:

Suggestions added :wink:

Gonna sleep now. Updates will be added in the morning… :arrow_right:

Change this f#cking SRK style extruded tube with simple tube with big bore inside. With parallel connection it will allow to use 3x21700 or 4x18650 with same tube.

I wish for enabling or disabling Memory as an option.
If memory enabled the fast click from off would be the memorized mode.
If Memory disabled the fast click from off would go to the Low (non Moonlight mode)
The above would be within the ramping group.

But it is bad timing to introduce this format of light after the Q8.

Or it could be a good time. There was talk about a Q8 like light with more emitters and also a triple I think. That would be a ways away. If Sofirn can keep it budget like and have consistent quality if could be a hit or a filler befor the next BLF Q8 iteration.

Also - Im not sure that this is suitable thread - but anyway:
There is one thing that are out of my machinary abilities, but defenetly can be made with tools that flashlight manufactures use.
If flashlight shape is not round or/and have some objects (side switch) that are usully imply one position when using (ie you will always hold it this way that you can manage switch with thumb), threads MUST be synchronised so the other screwing part (bettery tube) flatness was inline with this position. Maybe Im perfectionist but I dont like Q8 with tube flatness rotated by some degree relatively to the head.

Not a suggestion on how to improve this light, but a plea to Sofirm to make the host available.

Suggestions above added :+1:

Not added, but it’s nice you posted :wink: I think you got a (very good) point on this!!

kiriba-ru, if I understand correctly, you ask for a good “ergonomy” while grabbing/holding the light, making it easier to hold in the hands and find the switch button when/if rotating the line, right?
Like: the button aligned with a - example - flat surface on the top to have a nice grip, and also the emitters aligned well!
Is this it?

I wanted to clarify first to put the contribution on the post :wink:

Thanks in advance!

No.
Imagine that both parts (tube anc head) are square outside (or hex). If parts are first lathed, and then milled on another machine, this flat surfaces wont fit each other. I.e. you will be able to find position when they are synchronized but when you screw them all the way they wont fit. You can avoid this bug if you have combined lathe/mill machine with stepper motor or precision position sensor on main lathe axis.

Ok! Now I think I got it now :wink:

Looking to the picture of the K6 as example, the “raised” groove in the middle should always align with the side switch, in this case, independently of the batteries used inside! Is that the idea?

So, for the suggestion, can I post something like:
“combined/synchronized machining of head and body threads to enable precision and alignment of the 2 parts when screwing them together till the end” ?

I would stick to the main idea , 6* xp-l or 6*sst-40 (even better) on a copper DTP mcpcb with a quality boost? driver , or even a simple fet driver .

I would really like to see springs bypassed on this production light , Q8 proved that bypasses are a must . Second thing is brass screws holding the springs pcb , really makes a difference (3rd photo of Tom E’s post here) .

I would be interested in testing and writing a review too , thanks !

Suggestions added :wink:

How about the first production light with Andúril? It would make the product somewhat unique, specially if they work with ToyKeeper to iron it out to final release levels

I don’t know it it would be the first as the FW3A will probably have it! But I can put it in the suggestions ! :+1:
Following your message yesterday, about the interest list, you want to be put in it?

That was my intention, yes :wink: