Can’t deny that is a very nice build 
my Sofirn BLF LT1 with Samsung LH351D LEDs spectrums (<1% flickering in all modes) when cold body:
Finally…
v.0.99
Looks good from my preliminary look at it! This will be a metal core, non DTP pcb right?
1.6mm aluminium 2oz pcb
Sunlike does not have a thermal pad so no way to do DTP
The aluminum back will be enough.
I wasn’t expecting it to be DTP and with this many LEDs it doesn’t need it, but I think it can be done in something like the LT1. The head of the LT1 is electrically isolated from the body isn’t it? Theoretically it would be possible to be use the (+) pad as a dtp into the head but I think but there’s no point since the head is already at a limit heat dissipation wise with its lack of fins.
DTP is for leds with low thermal resistance and begins to matter at over 2A per led. In this setup the leds get just 100, maybe 200mA, and their internal thermal resistance is larger than the thermal resistance of the dielectric layer, so with DTP the biggest bottleneck is still there, inside the led.
ready! v.1.00 
Another LT1 user previously pointed out something odd about the stock board. From the photo SunLike shared of his stock board, I now see this is common:
The LT1 stock boards have a labeling error
Look at the solder point labeled “WW”. Notice that the masked copper layer from there goes to the 5000K LED’s. And the solder point labeled “NW” goes to the 2700K LED’s.
Assuming Sofirn hooked them up per the labels, I think the consequence is minor - the normal ramping behavior would be reversed, but you’d never know, because the same button sequence just alternates directions, and I don’t think it affects auto-tint, either.
The one function known to be affected is if you wanted to bridge a different number or 7135 chips on either channel, such as to make the normally dimmer warm white output match the neutral white output.
It makes absolutely no difference!
- I can solder leds anywhere I need. I mean WW to CW or to WW line.
- Customer can solder WW wire to CW or to WW line.
- Flashlight have a mirror control. No difference WW+CW or CW+WW
history of the project of PCB in GIFormat
https://vk.com/doc319700498_598718345?hash=b36c7ae7fa05ca6c86&dl=dd75d17bc69fd99f44
That’s what I thought, but it seemed worth bringing up before the boards get made, just in case I was overlooking anything.
Any updates?
I still did not ordered it. I am going to design another pcbs for another projects. And I will order pcbs and stencil to all of them. I hope 2-4 weeks to order. And about 1-3 weeks to get it to my warehouse in China and 1-1.5 moth to received it here :face_with_monocle:
How is the project going?
And how is SunLike going? The current situation in his home country will not be ideal for having a business…
We will just sit back and hope for the best for him and see what and when things shake out.