New Luminus SST-20 (3535 size)

182 posts / 0 new
Last post
BanL
Offline
Last seen: 1 month 1 week ago
Joined: 04/10/2015 - 12:30
Posts: 400
Location: China

SKV89 wrote:
BanL wrote:
Sure

Please don’t worry.

This is coming from the wheel of the LED. I had reserved some for selling in KD.

All the LEDs are directly coming from the distributor.

If you get any problem with the LED, please contact me for assistance.

Wait are you saying it’s shipped directly from the distributor? If so, is there a way I can order the FA1 bin, which is between 4250k and 4500k and below the BBL. The tint should look the same as the discontinued legendary 219B 9080 4500k but with higher output and efficiency.

Hi

Sure, you can let me know how many pieces do you want to order?

I can try to source the specified bin that you want to have.

Thank you

Ban

kaidomain.com KD - LED Flashlights, DIY Parts and Accessories

Inquiry for KD, please feel free to contact me.

SKV89
Offline
Last seen: 4 hours 48 min ago
Joined: 12/10/2017 - 12:46
Posts: 4384
Location: US

PM sent!

djozz
djozz's picture
Offline
Last seen: 14 hours 38 min ago
Joined: 09/07/2012 - 17:04
Posts: 18147
Location: Amsterdam

SKV89 wrote:
BanL wrote:
Sure

Please don’t worry.

This is coming from the wheel of the LED. I had reserved some for selling in KD.

All the LEDs are directly coming from the distributor.

If you get any problem with the LED, please contact me for assistance.

Wait are you saying it’s shipped directly from the distributor? If so, is there a way I can order the FA1 bin, which is between 4250k and 4500k and below the BBL. The tint should look the same as the discontinued legendary 219B 9080 4500k but with higher output and efficiency.


Usually it is not as convenient as that a distributor has all bins and tints on the shelf waiting for a buyer. My impression is that despite what is on the datasheet, only few bins and tints are actually produced and any different request must be especially produced, with the obvious minimum order numbers to make a production run going.
RotorHead64
RotorHead64's picture
Offline
Last seen: 1 year 2 months ago
Joined: 10/31/2015 - 02:49
Posts: 430
Location: United States

Dang it man… I want some.

eas
eas's picture
Offline
Last seen: 1 year 12 months ago
Joined: 07/14/2014 - 18:53
Posts: 1363
Location: PNW
djozz wrote:
Usually it is not as convenient as that a distributor has all bins and tints on the shelf waiting for a buyer. My impression is that despite what is on the datasheet, only few bins and tints are actually produced and any different request must be especially produced, with the obvious minimum order numbers to make a production run going.

Semiconductor bins are the result of post-production sampling and measurement.

My assumption is that they make a batch of wafers for violety, or whatever short wavelength they are using to pump the phosphor. These wafers are probably tested to determine parameters that may be used to fine tune later phases of the production process, like phosphor formulation.

The wafers are then used to make batches of whatever CCT and CRI ranges they think they can sell. Each batch will be tailored for a specific target, like 4000K, high CRI, or 5000K, 70CRI. Once produced, they’ll divide them into lots and then measure multiple samples from each lot.

When filling orders, they’ll combine lots in order achieve whatever binning the order requires.

None of which is to disagree with the point that distributors probably don’t have a lot of varieties on hand. Getting something specific probably won’t require a new production run (and if it did, it would require a large order), but it may require getting the manufacturer to pull suitable lots and make up reels.

Most emitters don’t end up being used on their own, their output ends up combined with that of multiple others. Whether or not a given emitter is above or below the BBL isn’t the concern for a lot of customers. They just want to be reasonably sure that, for example, a six-emitter halogen replacement bulb they make produces output indistinguishable from that of any other such bulb they made this week, six months ago, or six months from now.

adam7027
Offline
Last seen: 9 hours 8 min ago
Joined: 09/26/2017 - 13:54
Posts: 677
Location: EU (Hu)

Hello Ban,

I already took a set of both of your 95CRI SST20 tint offerings (HD2 and FB4). Probably I will take also some of the FA1 requested by SKV89.

I know, keeping up stocks of different emitters might be risky sometimes, but could you please source not just FA1, but GD2 tint as well?

I think, those could be very promising tints (I always looked for something between the ‘usual’ CCT offerings /5000K, 4000K, 3000K/ – 4500K is a true neutral white, while 3500K is a pleasant warm (but not overwhelmingly warm) white).

maukka
maukka's picture
Offline
Last seen: 10 months 5 days ago
Joined: 12/31/2015 - 04:15
Posts: 2175
Location: Finland

SST-20 4000K CRI95 arrived. Interesting to test it in a day or two.

iamlucky13
Offline
Last seen: 9 hours 3 min ago
Joined: 06/22/2018 - 09:18
Posts: 1065
Location: USA

Since there haven’t been any updates in a while, I was curious if any place besides Kaidomain offers these. It looks like Mouser might (if you can stomach their shipping prices).

They say not in stock, 5 week lead time, but they also say the minimum order quantity is 1. I don’t know if that means they’ll stock a whole reel on the expectation of future orders if somebody orders as little as one, or if your order would go into limbo if you don’t order a full reel.

I don’t know if this is even useful to anyone, but since I took the time to find these, here’s the best bins I saw in the high CRI versions, XP footprint (A120). The “##2” at the end of the part number is a chromaticity bin kit covering 4 possible quadrangles, 2 above and 2 below the BBL. A “##1” would indicate 16 possible quadrangles. You can’t specify which exact bin you would get.

2700K – SST-20-W27H-A120-J2272

3000K – SST-20-W30H-A120-J3302

3500K – SST-20-W35H-A120-J4352

4000K – SST-20-W40H-A120-J5402

The 3000K version is equivalent to what Kaidomain has, except Kaidomain’s are known to be below the BBL. The 4000K version is one flux bin higher, and Maukka’s test showed the Kaidomain J4 version as roughly equivalent to Nichia’s D220 flux bin.

eas
eas's picture
Offline
Last seen: 1 year 12 months ago
Joined: 07/14/2014 - 18:53
Posts: 1363
Location: PNW

Thanks. Cool to see that they are available from another source. I see that mouser is also offering the the cooler lower CRI SST-20s, too in MOQ1, but non-stocked.

They also list SST-40s now, and in 5000K and 5700K CCT, which I haven’t seen anywhere before. Unfortunately they are MOQ 500.

adam7027
Offline
Last seen: 9 hours 8 min ago
Joined: 09/26/2017 - 13:54
Posts: 677
Location: EU (Hu)

iamlucky13 wrote:
Since there haven’t been any updates in a while, I was curious if any place besides Kaidomain offers these. It looks like Mouser might (if you can stomach their shipping prices).

They say not in stock, 5 week lead time, but they also say the minimum order quantity is 1. I don’t know if that means they’ll stock a whole reel on the expectation of future orders if somebody orders as little as one, or if your order would go into limbo if you don’t order a full reel.

I don’t know if this is even useful to anyone, but since I took the time to find these, here’s the best bins I saw in the high CRI versions, XP footprint (A120). The “##2” at the end of the part number is a chromaticity bin kit covering 4 possible quadrangles, 2 above and 2 below the BBL. A “##1” would indicate 16 possible quadrangles. You can’t specify which exact bin you would get.

2700K – SST-20-W27H-A120-J2272

3000K – SST-20-W30H-A120-J3302

3500K – SST-20-W35H-A120-J4352

4000K – SST-20-W40H-A120-J5402

The 3000K version is equivalent to what Kaidomain has, except Kaidomain’s are known to be below the BBL. The 4000K version is one flux bin higher, and Maukka’s test showed the Kaidomain J4 version as roughly equivalent to Nichia’s D220 flux bin.

Thank you for mentioning that. I specifically wanted to get a few of 3500K CCT ones Party

Geuzzz
Geuzzz's picture
Offline
Last seen: 1 week 5 days ago
Joined: 10/25/2015 - 10:27
Posts: 1469
Location: Netherlands

adam7027 wrote:
iamlucky13 wrote:
Since there haven’t been any updates in a while, I was curious if any place besides Kaidomain offers these. It looks like Mouser might (if you can stomach their shipping prices).

They say not in stock, 5 week lead time, but they also say the minimum order quantity is 1. I don’t know if that means they’ll stock a whole reel on the expectation of future orders if somebody orders as little as one, or if your order would go into limbo if you don’t order a full reel.

I don’t know if this is even useful to anyone, but since I took the time to find these, here’s the best bins I saw in the high CRI versions, XP footprint (A120). The “##2” at the end of the part number is a chromaticity bin kit covering 4 possible quadrangles, 2 above and 2 below the BBL. A “##1” would indicate 16 possible quadrangles. You can’t specify which exact bin you would get.

2700K – SST-20-W27H-A120-J2272

3000K – SST-20-W30H-A120-J3302

3500K – SST-20-W35H-A120-J4352

4000K – SST-20-W40H-A120-J5402

The 3000K version is equivalent to what Kaidomain has, except Kaidomain’s are known to be below the BBL. The 4000K version is one flux bin higher, and Maukka’s test showed the Kaidomain J4 version as roughly equivalent to Nichia’s D220 flux bin.

Thank you for mentioning that. I specifically wanted to get a few of 3500K CCT ones Party

I agree tried both 3000k and 4000k. 3500 should be a perfect compromise.

-X3-
-X3-'s picture
Offline
Last seen: 1 week 5 days ago
Joined: 07/16/2014 - 03:28
Posts: 2746
Location: France, Angers

3500K should be a sweet spot, I put 2*4000K and 2*3000K in my D4 it’s puuurfect !

"-X3-, is there any place in your house without a flashlight ?" 

My Flashlight public album (mods, emitter swaps, eye candy)

My reviews channel (French language, Olight, Thorfire, Sofirn, Lumintop : 60+ lights tested)

My personal channel (including Olight SR mini, S1, S2, S1A and S-mini disassembly)

M4DM4X blog, saves you $$$ 

contactcr
Offline
Last seen: 2 days 17 hours ago
Joined: 05/19/2017 - 18:52
Posts: 3654
Location: US

iamlucky13 wrote:

3500K – SST-20-W35H-A120-J4352

4000K – SST-20-W40H-A120-J5402

I hope someone bites the bullet and tests these cause in my opinion the 4000K from Kaidomain is just a bit too green, even more so than LH351D which doesn’t bother me too much.

g_damian
g_damian's picture
Offline
Last seen: 1 day 1 hour ago
Joined: 08/20/2017 - 06:52
Posts: 682

contactcr wrote:
iamlucky13 wrote:

3500K – SST-20-W35H-A120-J4352

4000K – SST-20-W40H-A120-J5402

I hope someone bites the bullet and tests these cause in my opinion the 4000K from Kaidomain is just a bit too green, even more so than LH351D which doesn’t bother me too much.

http://budgetlightforum.com/node/62195

contactcr
Offline
Last seen: 2 days 17 hours ago
Joined: 05/19/2017 - 18:52
Posts: 3654
Location: US

g_damian wrote:
contactcr wrote:
iamlucky13 wrote:

3500K – SST-20-W35H-A120-J4352

4000K – SST-20-W40H-A120-J5402

I hope someone bites the bullet and tests these cause in my opinion the 4000K from Kaidomain is just a bit too green, even more so than LH351D which doesn’t bother me too much.

http://budgetlightforum.com/node/62195

I have the same emitter from that review. I like the other properties of the LED I just mean I want to see what tint this specific reel is from Mouser since I think the Kaidomain one is more green than I prefer.

iamlucky13
Offline
Last seen: 9 hours 3 min ago
Joined: 06/22/2018 - 09:18
Posts: 1065
Location: USA

contactcr wrote:
iamlucky13 wrote:

3500K – SST-20-W35H-A120-J4352

4000K – SST-20-W40H-A120-J5402

I hope someone bites the bullet and tests these cause in my opinion the 4000K from Kaidomain is just a bit too green, even more so than LH351D which doesn’t bother me too much.

The Mouser emitters could come from the same bin as the Kaidomain emitters. I don’t think there is any way to know until they’re received. I’m pretty sure Mouser just takes the reels as received, and trims off the ordered quantity without even looking at the bins.

The kits come in 4 bin and 16 bin sizes. The links I dug up are a 4 bin kit.

Here’s the chart Maukka posted in his review from the datasheet. Kaidomain’s current stock are FB4, so it makes sense that they’re a little bit green:

contactcr
Offline
Last seen: 2 days 17 hours ago
Joined: 05/19/2017 - 18:52
Posts: 3654
Location: US

It could be, yes. But at least it’s a different flux bin so you know it wont be the exact same thing either way. A chance i’m sure someone is willing to take Smile

BlueSwordM
BlueSwordM's picture
Offline
Last seen: 13 hours 26 min ago
Joined: 11/29/2017 - 12:34
Posts: 5616
Location: Canada

So, with the 4000k one, we have 1/2 chance of getting a below BBL LED, and a 1/2 chance of getting an above BBL LED.

My very own high current Beryllium Copper springs Gen 3:
http://budgetlightforum.com/node/67401
Liitokala Aliexpress Stores Battery Fraud: http://budgetlightforum.com/node/60547

eas
eas's picture
Offline
Last seen: 1 year 12 months ago
Joined: 07/14/2014 - 18:53
Posts: 1363
Location: PNW
BlueSwordM wrote:
So, with the 4000k one, we have 1/2 chance of getting a below BBL LED, and a 1/2 chance of getting an above BBL LED.

Just use them in a quad Smile

BlueSwordM
BlueSwordM's picture
Offline
Last seen: 13 hours 26 min ago
Joined: 11/29/2017 - 12:34
Posts: 5616
Location: Canada

Hmm.

Perhaps we should organize a GB for these LEDs.

I’d be up for about 25pcs for 4000k, and 10pcs for 3500k.

The price would be halved for 250pcs of LEDs, so that would be nice to organize.

My very own high current Beryllium Copper springs Gen 3:
http://budgetlightforum.com/node/67401
Liitokala Aliexpress Stores Battery Fraud: http://budgetlightforum.com/node/60547

adam7027
Offline
Last seen: 9 hours 8 min ago
Joined: 09/26/2017 - 13:54
Posts: 677
Location: EU (Hu)

BlueSwordM wrote:
Hmm.

Perhaps we should organize a GB for these LEDs.

I’d be up for about 25pcs for 4000k, and 10pcs for 3500k.

The price would be halved for 250pcs of LEDs, so that would be nice to organize.

If anyone starts such a group buy, I will go for at least 25× 3500K

SKV89
Offline
Last seen: 4 hours 48 min ago
Joined: 12/10/2017 - 12:46
Posts: 4384
Location: US

Even the FA3 tint bin that Fireflies is using is reported to be a little on the green side and requires a minus green filter to perfect. If we can source the FA1, FA4, FD1, FD4, I will be willing to buy at least 25.

n10sivern
n10sivern's picture
Offline
Last seen: 10 hours 43 min ago
Joined: 11/09/2014 - 21:37
Posts: 1549
Location: biloxi, ms

I can organize a group buy if enough people are interested in the 3500k 95CRI LEDs. Goal would be 250. Just let me know if y’all think it is doable. They are estimated to ship in January.

SST-20-W35H-A120-J4352 White LED 3500K 95 CRI

Three tomatoes are walking down the street- a poppa tomato, a momma tomato, and a little baby tomato. Baby tomato starts lagging behind. Poppa tomato gets angry, goes over to the baby tomato, and smooches him… and says, Catch up.

DBSAR
DBSAR's picture
Offline
Last seen: 9 hours 37 min ago
Joined: 02/11/2013 - 23:28
Posts: 6401
Location: Newfoundland, Canada

We may have to go with this new Luminus LED for the BLF Lantern project, as apparently the Samsung 351 series in 2700K & 5000K are hard to order for the manufacturer of the lantern, but have not seen or tested this SST-20 emitter yet.

That Canadian flashlight guy & Lantern Guru -Den / DBSARlight

Agro
Agro's picture
Online
Last seen: 5 min 12 sec ago
Joined: 05/14/2017 - 11:16
Posts: 6936
Location: Ślōnsk

Personally I think it would be a good option. Going with CRI above 9080 really gets quickly into diminishing returns in terms of light quality. Going above 9050 quickly reduces efficacy. SST-20 is already quite inefficient, but I don’t think it’s too inefficient for this lantern…and for a CRI 95 emitter it’s good. It’s quite a bit smaller than LH351D which negatively affects its performance at high currents, but this lantern won’t have high currents. It’s already quite rosy and tint mixing will make it even rosier, we can expect CRI to suffer because of that. But is that going to make the light more or less pleasant?

adam7027
Offline
Last seen: 9 hours 8 min ago
Joined: 09/26/2017 - 13:54
Posts: 677
Location: EU (Hu)
Agro wrote:
Personally I think it would be a good option. Going with CRI above 9080 really gets quickly into diminishing returns in terms of light quality. Going above 9050 quickly reduces efficacy. SST-20 is already quite inefficient, but I don’t think it’s too inefficient for this lantern…and for a CRI 95 emitter it’s good. It’s quite a bit smaller than LH351D which negatively affects its performance at high currents, but this lantern won’t have high currents. It’s already quite rosy and tint mixing will make it even rosier, we can expect CRI to suffer because of that. But is that going to make the light more or less pleasant?

As this emitter is only available in the 2700-4000K CCT range, this should be less of a problem. Mixing tint with a 2700K and 4000K emitter should give desirable result (maybe a bit on the rosy side between 3000K and 3500K).

I think, Nichia E21A could be still considered for the lantern (but it would need different PCB), as it has CCTs down to 2200K and 2000K with R9080 CRI (these are designated as R9050, but maukka measured R9 above 95 for the 2000K variant). Nichia E21A could be a good candidate for tri-channel mixing (e.g. 2000K, 3000K, 4500K), but I know, that it is only a wish of mine Smile

djozz
djozz's picture
Offline
Last seen: 14 hours 38 min ago
Joined: 09/07/2012 - 17:04
Posts: 18147
Location: Amsterdam

I fear that the E21A would give handling problems when reflowed by flashlight manufacturers, it is a delicate operation and I’m pretty sure they have no pick-n-place machines at Sofirn.

I’m all for the SST-20-W led, at these drive currents it is not that much less efficient than the LH351D. I think though that a few people regret that the colour temperature will not go up to 5000K anymore. Btw, I had understood from Barry (from a different discussion) that Sofirn is able to source the high CRI SST-20 leds.

adam7027
Offline
Last seen: 9 hours 8 min ago
Joined: 09/26/2017 - 13:54
Posts: 677
Location: EU (Hu)

djozz wrote:
I fear that the E21A would give handling problems when reflowed by flashlight manufacturers, it is a delicate operation and I’m pretty sure they have no pick-n-place machines at Sofirn.

I’m all for the SST-20-W led, at these drive currents it is not that much less efficient than the LH351D. I think though that a few people regret that the colour temperature will not go up to 5000K anymore. Btw, I had understood from Barry (from a different discussion) that Sofirn is able to source the high CRI SST-20 leds.

Yes, the bare phosphor of the E21A seems to be pretty sensitive, so I would not try it myself as well.

Good news Smile I had a talk with Sofirn a few months earlier about how high CRI can be good.
So I hope, if they can source those LEDs, they will Smile

contactcr
Offline
Last seen: 2 days 17 hours ago
Joined: 05/19/2017 - 18:52
Posts: 3654
Location: US

djozz wrote:
I fear that the E21A would give handling problems when reflowed by flashlight manufacturers, it is a delicate operation and I’m pretty sure they have no pick-n-place machines at Sofirn.

I’m all for the SST-20-W led, at these drive currents it is not that much less efficient than the LH351D. I think though that a few people regret that the colour temperature will not go up to 5000K anymore. Btw, I had understood from Barry (from a different discussion) that Sofirn is able to source the high CRI SST-20 leds.

LH351D diffuse really well as it is. Even though SST-20 may work it seems like a compromise in every regard. Efficiency, CCT, and beam shape. Makes you wonder what is truly going on with Lumintop and Sofirn with some of these projects..

DavidEF
DavidEF's picture
Offline
Last seen: 2 weeks 1 day ago
Joined: 06/05/2014 - 06:00
Posts: 7699
Location: Salisbury, North Carolina, USA

djozz wrote:
I fear that the E21A would give handling problems when reflowed by flashlight manufacturers, it is a delicate operation and I’m pretty sure they have no pick-n-place machines at Sofirn.

I’m all for the SST-20-W led, at these drive currents it is not that much less efficient than the LH351D. I think though that a few people regret that the colour temperature will not go up to 5000K anymore. Btw, I had understood from Barry (from a different discussion) that Sofirn is able to source the high CRI SST-20 leds.


Yeah, I was really wanting the lantern to go a little higher than 4000K for sure. However, since it’s a lantern and not a flashlight, I think 4000K would still be acceptable.

The Cycle of Goodness: “No one prospers without rendering benefit to others”
- The YKK Philosophy

Pages