GB 351D closed.

If they are still available, I’m interested in 4 pieces of the 351D, 4000K (F2T7R2).

As long as I’m ordering, I might as well take also take 2 of each of the available bins of the 351B, 3000K.

Thanks!

PM sent.

I’d like to order a few:

1)351D 5000K 90cri tint F2R1S2 300pcs 1.7$ - 10
2)351D 4000K 90cri tint F2T7R2 20pcs 1.7$ - 10
3)351B 3000K 90cri tint D2V7H1 60pcs 0.55$ - 10
4)351B 3000K 90cri tint D2VAJ1 20pcs 0.55$ - 10

PM sent.

Привет андрей,

Do you have any plans to sell other LEDs apart from Samsung LH351B / LH351D? I know it's always dependent on the actual interest here on BLF versus the MOQ of 800 LEDs. Just being curious... ;-) BTW: I still like the thought of getting some LH351D 3000K 90CRI or LH351D 4000K 70CRI (for comparable output to the 351D 5000K 70CRI W6 flux bin). :LOVE:

Cheers,

Томас

Hi, Thomas!

No , actually I have no plan to selling Led. But if I find something interesting I will study interest)
There are 351C 4000K 70cri https://e-neon.ru/moschnyie-svetodiodyi/moschnyie-svetodiodyi-1/sphwhtl3d50ce4t0qf

You can also try to ask somebody who has access to digikey or arrow.

Best regards
Andrey

Thanks Andrey, I will have a look into that, too. :-) Currently, I'm looking for a reliable source to buy XP-E2 photo red (650-670nm) and XP-E2 far red (720-740nm) but I'm unsuccessful to find a seller.

Anyway, all your LEDs have arrived in perfect condition and work like a charm. I'm very satisfied both with the 70CRI (for maximum performance) and the 90CRI (for best colour rendition). It seems the quality of 90CRI light will be significantly influenced wether you use an optic or a reflector and - to my surprise - if you use an AR coated lens or one without coating. The best color rendition seems to be gained by using a mule design (e.g. Solarforce P60 quad LED board) without AR coated lens.

@Lux Perpertua, are you sure you want to get LH351Ds from Digikey?

If so, then I can help you out.

Thanks for the kind offer BlueSwordM! Actually, I was interested into a bunch of LH351D 3000K 90CRI for comparison to 4000K and 5000K 90CRI or for a triple independent light (KD dropin) with all three tints in one light. But I'm not sure if it's worth the high shipping cost from Canada to Germany...just thinking. Maybe it's worth taking a closer look to Arrow, Mouser, Digikey and so on. Mouser has a lot of LEDs but they charge "pharmacy prices" for shipping over here. It's hard to find a source where you can rely on purchasing the right flux bin / tint bin, though.

Shipping will not be expensive via the method I’ve used before for shipping, and I haven’t had any problems with them with my special kind of envelopes.

Shouldn’t cost more than 5$US to ship via that method.

Will have to order at least 60-65 emitters to get free shipping too however.

Thomas you can look this https://e-neon.ru/spetssvet/svetodiodyi-2/sphrd1l3dh00a4r2d2

And many red LEDs at bottom of page in “похожие товары”.

Arrow has top flux bin red XP-E2s, bought one in the past. Some others in stock, too.

^:)

Paypal sent! I hope my slow response was no trouble.

I’m looking forward to putting one of these in an S2+ to compare to another S2+ that has a 219C in it. Also, I will probably try slicing one like Djozz has discussed to see if I like that better.

Thank you Andrey and Barkuti!

I checked all known sources for XP-E2 photo red and far red but I was unsuccessful with E-Neon, Mouser, Digikey and Arrow. The one and only source I could find was cutter.au which is an Australian supplier and I have no idea how reliable it is and how much shipping would be just for some LEDs. The Samsung LH351H (deep red) is very much like XP-E2 red, i.e. 1A maximum current, probably peak at around 1.75A max.. Anyway, thanks for you help.

Has anyone tested the LH351C yet in comparison to 351B and 351D?

Cheers

Thomas

The only one I’ve found is the XP-E in the far red spectrum:
https://www.mouser.ca/ProductDetail/Cree-Inc/XPEFAR-L1-0000-00701?qs=Rt6VE0PE%2FOeUVLT3F7NPxQ==

The LH351C is more or less in a middle ground between those two, maybe closer to the LH351B:

Samsung LH351C 5000 K CRI90 color and output test by maukka.

:-)

@ BlueSwordM

Yes, that one I found, too but I'm wondering why Cree states order codes for the XP-E2 far red and photo red but these are nowhere to get.

@ Barkuti

Alright, gracias! The 351D 4000K 70CRI with a top flux binning and same great characteristics as 351D 5000K 70CRI W6 would be a dream to come true. :-D I'm sure that one would also sell great even without HighCRI but instead with tremendous high current capabilities. Just thinking of a D4S with 2x 4000K 70CRI and 2x 5000K 70CRI for a great neutralwhite 4500K beam and 5000+ lumens.

On a side note:

I really really like BLF but working with quotes in the text editor is a real nightmare. No matter what I try when quoting something, it all ends up as an entire quote with my reply....aaaaarrrrghhh.

There is also Deep Red (~660nm) and Far Red (~730nm) from Luminus (they can be driven to 1.5A as the doc says, maybe a bit above that), but that needs a different soldering mask, as the contacts are not in a 3.25mm sided square area as the SST-20W has them, but 2.7mm, so I don't know, where one could get a board, which fits that.

Check Led4Power's catalog adam7027, they have some alternative smaller layout MCPCBs:

Oh, really, I forgot about those