Is there a 5050 3V high CRI LED?(Rollercoster of emotions --- 3V 5050 9070 --- GT FC30 6V R9070 5050 --- GT FC60 12V R9080 7070)

LED Flashlights – General Info
1

To answer the question, yes such a 3V LED does now exist.
Here is a group buy for it here:

Hello again people.

I have a big question for you all: do you know of any 3V R9050/R9080 5050 LED?

Since the SST-40/SFT-40 95CRI LED is probably very far off still, it’d be nice if there were any alternatives, since while XHP50.3 HI 90CRI LEDs exist, they do not exist in 3V form yet.

Datasheets are in!!!

GT FC30

GT FC20

GT FC-15

GT FC-60

Note: this is just a generic datasheet for the generic LED properties.

No worries, they will make R9080 LEDs for the final batch :stuck_out_tongue:

Update 1:

Oh god freaking damn it!

It looks like our dreams have been dashed almost entirely: while the GT FC30 can be made to work in 6-12V, 3V is not currently possible.

“the circuit structure determines that it can not shifted to 3V without an entire redesign”

I am currently trying to get Getian to make us a semi-custom LED in 3/6V variety, but I’m not sure we’ll be able to make that order, as with my previous experience at a luminaire manufacturer, Cree and Luminus required us to make quite the large order to make it so.

I’ll still order the samples for testing obviously, and I’ll be hard at work to convince the higher ups at Getian to make an internal redesign :stuck_out_tongue:

Update 3: Picture of the LED itself

Update 4: So the FC30 has the same LES as the FC20, but uses different higher quality emitters with quite a bit higher efficiency to boot and much higher current handling.

So yeah, the FC30 was the right choice after all, as it could work as a direct XHP50/70 replacement.

Ok, I also discovered something else: the emitters used in the GT-FC20 and GT-FC40 are the same, while the GT-FC30 and GT-FC60 use the same emitters as well, and they’re more efficient to boot.

It might actually explain why the GT FC40 wasn’t that efficient, even for a high CRI emitter: same LES as the higher power higher end FC60, but different lower class emitters.

Update 5:

Excellent news.

1. The FC15 is indeed a pure XM-L2 replacement. 5050 R9080 3V let’s gooooo.

2. The FC60 does use upgraded emitters over the FC40.

3. I got some new datasheets as well!!!

Update 6:

I have some great news that should really make everyone as happy as ever :confused:
There has been some miscommunication: no domeless 5050 3V LEDs are currently available in Getian’s catalog.

Update 7:

LED samples have been ordered for testing.

Update 8:

Preliminary color measurements(luminosity measurements will come later, I just asked them while they were doing it on our test samples, so I got them early)

Update 9:

Here is the datasheet for the 3V 5050 domeless LED in question:

5050, 3V, domeless.

The other stuff doesn’t matter too much, as always since they’re not very detailed.

Update 10:

So, I have some great news, some just good news(they’re not bad news, but less than I wanted) and some great future news.

Great news: All of the GT FC30s and FC60s have been produced, fabbed, and shipped. Hopefully I’ll receive them early next week for rapid testing.

Just good news: While the FC60s is easily available to be produced with a rating of Ra9080, I discovered something interesting about phosphors for smaller LEDs and why we mostly see the small die high power high color rendition stuff from larger manufacturers: they are a rarer from conventional suppliers and more expensive than larger phosphors, which explains why very few smaller manufacturers actually manufacture high power high CRI LEDs in 5050 and smaller.

I’m saying all of this to say that the GT FC30 will having a rating of Ra9070 guaranteed, not Ra9080 sadly. It’s still a very interesting LED though, so I’ll be keeping my eyes on it.

Also, since we were dealing with a sample batch, I wasn’t able to get serious any tint binning going on, which means the sample LEDs come in duvs of –0.001 to 0.003. Certainly not bad, but not what I want in the production batch :smiley:

Future great news: :smiley:

Once we get to the production batch, we will be able to ask for tint duv binning of –0.005 to 0.000, slightly rosy to perfectly neutral, and if we are willing to pay a bit extra for some samples, they will check if tint duv binning of –0.010 to –0.005 is possible, so 219B SW45K grade to slightly rosy grade.

That is valid for both the GT FC30 and GT FC60.

2

Subscribed, FWIW this poster asked over a month ago and no replies.

A couple of years earlier a posted was seeking the same, and got this recommendation for a 3000K XML that’s still available from Mouser.

3

Hmm, I see.

Although a 3000k XM-L2 isn’t really my cup of tea personally.

4

There are a few Chinese 5050 high CRI LEDs, but their specs are very fuzzy to me.

Maybe Getian has something for me :smiley:

5

Oooh I just found a Getian 5050 high CRI LED, although I’m not sure if it’s 3V or 6V hmm.

I’ll contact Getian just in case :smiley:

6

Damn that was a quick response:

It’s really surprising, especially on a Saturday.
I may have gotten really lucky lmao.

We may have hit jackpot boys, although the 12V one until we get more detail :stuck_out_tongue:

Man, I’m excited.
There’s actually a 5050 equivalent of the XHP50 in there!!!

7

Well there are E17A and E21A quadrix, but they only work with diffusing optics.

Edit : and not XM footprint

8

Yeah, it’s a bit problematic.
Still, I’m making progress.

Perhaps at the end of month, we’ll either get a 5050 12V high CRI good tint LED, or optimally speaking, the 3V variant so we can put it everywhere lmao.

9

The Cree is not so bad:

Left: 219B sw30 in Utorch S1 Mini, right: XM-L2 3000K in 2012 RRT01

10

Can you post a link or info? I need some good 5050 high cri emitters

11

@id30209:
https://www.gt-led.com/gt-fc20-20w-cob-led-chip-high-power-12v-20w-flip-chip-light-source-for-automotive.html

There’s more information on wholesaler websites, but they do exist :slight_smile:

Still, I’ve only found 12V now. If only there were 3V/6V 5050 GT-FC20s/30s :smiley:

12

Imagine if we could get Getian to make 3/6V variants by convincing them to do it for the flashlight market :smiley:

There is hope:

13

following this closely, BlueSwordm!

I have a bunch of 6v/12v xhp50.3 HI and now 70.3 HI warm white / Hi CRI LEDS coming in as we speak, along with some awesome "hosts" too. I have all but given up on any of these existing in 3volt format, and i have instead specifically only been seeking out 12v and 6v driver based lights. Over the last 6 months. I will blame that on the almighty xhp35 HI though, once i discovered how great that LED can be, it has COMPLETELY changed what i look for in single emitter lights (12volt only? haha, ok.. ill take 6volt lights too). I haven't purchased a single emitter 3volt flashlight in a long while, up until the sofirn SP10 Pro at least lol. but AA doesnt count, does it?? oh, and there was the Convoy L8 too, but sbt90.2 doesnt count either! hah

14

@ArtieT59, me too :slight_smile:

Personally, I want the 3V variant to exist so we can finally get a GT-FCXX equivalent of a high CRI SFT40 so we can use their LEDs in way more lights since they currently seem to have excellent tint and color rendering.

I would looove a BLF Q8 with 4000-4500k GT-FC20s :heart_eyes:

15

yea that would be so awesome! I know what you're saying, I've since dreamed of a 3000k 90CRI 5050 led to put in my BELOVED Astrolux EC03, or even ft02s. I could do xm-l2 but that's ehhh, I may try it. I just got an amazing bin from kaidoman this week (7A3), but there's some serious tint shift depending on the reflector I put it in. With gt fc40 (or 20) the beam is SO clean and even.

16

I have some great news, but they are weird news.

Let’s start with the good news:

1. The Getian stuff is going well, but not much more info yet.

2. I found a high CRI 3V 5050 LED, but it’s a weird one: 6500k + 2700k 95CRI on a single 5050 substrate…

I have 0 idea how it actually exists.

If we can’t get a GT-FC20/30 in 3V, then this is our next best option.

17

It’s an adjustable CCT LED, it will only work with (wide angle) color mixing optics.

18

@thefreeman, oh really? I can’t just give the same power to all the LEDs parts as a single parallel group and then make it behave like a normal LED?

I’ll ask the manufacturer.

19

Sure, the 4 dies are individually addressable so it can be configured as 3V 6V and 12V (though 12V will lose CCT adjustable feature).
What I mean is that with the 2 2700K and 2 6500K dies the beam will look funky with normal optics, only with tint mixing optics that blend the light the beam will look uniform.

20

Yeah if they are willing to do a special batch then 3/6V would be much better than just 3V, something like this :

3V when used on XM boards, 6V when used on XHP50 12V boards layout.