Project: SUNLIKE LT1 board (Option for 660nm Red)

I asked Barry from sofirn about making an LT1 “Host” (everything except for LEDs and mcpcb) available but sofirn seems to not accommodate such changes unless they can expect 50-100 orders.

Ask him about information support of this project. I mean first mass sunlike flashlight.

What price will be with shipping inside China if 50pcs LT1 without pcb ?

Do you want any other information besides the price? It might help to know what city you want to receive them at.

My address in China is:

银海路陶界岭小区30栋1单元1楼门面房

P.s. Can you give me his contact? I will @#$% his mind directly =)

Be nice :stuck_out_tongue:

WhatsApp: +8615773183209

Is the best place to reach him at

Wee will $%^& his mind together :smiley:

He is the boss of the Sofirn?

Because of the risk of spam messages and calls, it is generally not a good idea to share personal contact information on the web. I recommend editing the post to remove the number and sharing such information by private message.

I do not think it matters since it is the number sofirn lists on their website for customer service.

https://sofirnlight.com/contact-us-a0041.html

Oh… It’s not interesting! He is not the boss :frowning:

Barry was the Sofirn contact for various BLF-Sofirn joint projects, like the Q8 and the LT1 lantern, although he is not the boss, he has influence, and for us the only one there who speaks english.

I’m not sure how is the red LED going to be used here.
Is it meant to fill one channel, so ramping warms the beam up by adding red to the spectrum?

yes. all 18 leds will be red 660nm

about new SOL2835 (3rd generation)
and spectrum of the 3032 leds

It is brighter, but I do not like spectrum

It is not SunLike, it if just “high CRI” ! :person_facepalming:

I understand that 660nm is available but I can’t resist to mention an experiment I did a few years ago.

The experiment was adding red light to 80CRI 2700K leds, and it appeared that the most effective wavelength for that was 640nm, which is more efficient than 660nm (almost 3 times as visible to the eye) and makes for a better spectrum with less of a gap in the red region. The CCT went down to about 2400K if I remember well, and CRI went up to 95.

red peak of the SunLike LEDs not in the same place as in cheap leds. So, 660nm will be better. And it is real red, not red-orange.

SOL2835 4000k:

Cheap LEDs 4000k:

I’m not sure if I like the sunlike + red idea…
SOL has no problem with producing 660nm and even over 700nm.
I have a feeling that colour rendering is more likely to go down than up, especially if there’s a lot of red mixed in to the spectrum.

But I’m not sure about it.

Anyway, mixing different red wavelengths might be an option as well.

Idea was make 2200k CCT and etc

Also I think that it is like emergency red light. After red light, eyes adapt very quickly to the darkness. Rest assured, after SunLike LEDs too!

I understand that with SunLike leds the red peak goes more to the the right than with 80CRI leds and so longer wavelengths will fit better in the spectrum.

It will at least be very interesting how this works out, I like new stuff! :slight_smile:

about wholesale price for LT1… I already contact with 3 persons about it

It is not interesting. Because retail price is 37+2$ with shipping inside China. Wholesale price is almost the same :person_facepalming:

Aliexpress price is 49$ (without batteries), from their site (sofirnlight) 57$ with batteries and international shipping

So, there is no reason to resell it with SunLike leds. Also they can not sell without pcs.

I think that they are not manufacturers, just resellers.

May be future project will be create my own SunLike flashlight based on cheap flashlight… may be yes, may be no, who know…

Is that 37 + 2$ for each full LT1 or just the empty body with the intention to replace with your board?

I am definitely interested in a 2700k + 660nm DR LT1 board. I haven’t had any experience modifying lights before, how tricky would it be to swap the board out for a SunLike one?