LG high CRI LED E2L flashlight-maybe this LED is unknow to everyone..

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Benik3
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Hello.

Nice to see new High CRI LED, but why no one use Cree High CRI LED?
E.g. XPLBWT-00-0000-000UU650G is XP-L2 90 CRI 5000K LED with 132lm/W…

Sorry for my English Sealed

Agro
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Zebralight SC64c does.

The_Driver
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I have studied the picture of the LED LGs website more closely. It actually seems to have bond wires, so it’s not a flipchip LED. De-doming might be a nice option here for some people.

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The_Driver wrote:
I have studied the picture of the LED LGs website more closely. It actually seems to have bond wires, so it’s not a flipchip LED. De-doming might be a nice option here for some people.

I have done a sort of attempt to dedome a Samsung led in the past and that was a fail, at least it is a lot harder to do than Cree leds. LG leds seem to be technically related to Samsung leds.
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Benik3 wrote:
Hello.

Nice to see new High CRI LED, but why no one use Cree High CRI LED?
E.g. XPLBWT-00-0000-000UU650G is XP-L2 90 CRI 5000K LED with 132lm/W…


Correct me if i’m wrong, but high CRI does not necessarily mean great values in the red part of the spectrum.
And from what i’ve read about Cree high CRI LEDs, they don’t have as much deeper red as Nichia high CRI LEDs.

Even when the tint is to the red side, real deep red is not necessarily there.

Maybe those XP-L2 you mention are just as good, i don’t know them.

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5” parabolic reflector (for recoil light)

The_Driver
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Actually the newer Cree LEDs (XHP-50, XHP-70, XP-G3, XP-L2, XHP50.2, XHP70.2) with 90CRI are just as good as the R9050 Nichias in this regard. I have lights with both and measurements from others have shown this as well (Maukka for example, see here). Wink
Of course the Nichias have better tints though.

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The_Driver wrote:
Actually the newer Cree LEDs (XHP-50, XHP-70, XP-G3, XP-L2, XHP50.2, XHP70.2) with 90CRI are just as good as the R9050 Nichias in this regard. I have lights with both and measurements from others have shown this as well (Maukka for example, see here). Wink

dont think you are right
219b can have 90+ R9, still unbeatable for any crees.

Meanwhile in Russia: https://twitter.com/CrazyinRussia

The_Driver
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I wrote R9050 Nichias. Wink

The 219Bs are very inefficient and have a low maximum lumens output. The current 219Cs are not available with R9080, only R9050. Also they don't offer an XP-L2 sized LED. That is why this LG is so interesting. 

There is also the question of what we actually need. A R9 value of >=50 is already very good. It makes all the diffference in the world compared to LEDs of the past. 

Jerommel
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The_Driver wrote:

I wrote R9050 Nichias. Wink


The 219Bs are very inefficient and have a low maximum lumens output. The current 219Cs are not available with R9080, only R9050. Also they don’t offer an XP-L2 sized LED. That is why this LG is so interesting. 


There is also the question of what we actually need. A R9 value of >=50 is already very good. It makes all the diffference in the world compared to LEDs of the past. 


I find that R9080 Nichias make the R9050 Nichias look like Cree..
You notice this especially on human skin.

Looking for:

5” parabolic reflector (for recoil light)

The_Driver
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I know, I know. But outside the difference is not as pronounced. Depends on the application.

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That’s true.
It’s not always that important.

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5” parabolic reflector (for recoil light)

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I know sample size = 1, but I have a high CRI XP-G3 and find it very ugly. Yes the CRI is there, you can tell it if you look for it, but I’m so distracted by how green it is that I have to really try to see the nice color rendering.

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emarkd wrote:
I know sample size = 1, but I have a high CRI XP-G3 and find it very ugly. Yes the CRI is there, you can tell it if you look for it, but I’m so distracted by how green it is that I have to really try to see the nice color rendering.

It seems to vary. I have 4000K 90CRI XP-L2’s that are as green as you describe, while the 80CRI variant of the same led has a great tint. The 3000K 90CRI XM-L2 leds that KD sells again have a wonderful tint.
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I have several CRI80 and 90+ XHP50/70 and none of them look as good as the Nichias because of green or yellowish muddy tint.

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I have some 80 CRI 3000k XP-L2 which aren’t too bad, lots of pink in the tint. But the 80 CRI 3000k XP-G3 looks fairly green. I’m sure there are good new generation Cree chips out there, but it seems a bit of a lottery right now.

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The only amazing Cree I’ve seen so far is the 4800K XM-L2 EasyWhite (quad die) in the ZL H600Fd Mk3. Even if it is CRI 84 R9 19. The frosted lens makes wonders.

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This is going off-topic, but I recommend shaving or de-doming the first generation high-cri XHP-50 and XHP-70s. It noticeably reduces the yellow corona and spot. The tint becomes much more even.

djozz wrote:
I have them in house but did not come round to doing anything with them. I can do an output test and visually evaluate tint (including how good the red portion is) but can not measure tint, let go R9.

When will you find the time? Big Smile

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Yep, it helps a lot for the tint shift and even makes the tint better on some emitters but I haven’t been able to get the tint just perfect. The best one and the only one I would call neutral is a shaved 5000K XHP70 CRI90 in a K60. Beam.

Benik3
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Thanks for replies.
Yes, I know about R9 specifications, but I didn’t know, that Cree has so bad tints Smile

Sorry for my English Sealed

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Unfortunately, triples are too floody for me, so the E2L is off the menu.

Any chance of getting this LED into an M2?

That would probably be a unique light in the marketplace, because 5000K and 90 CRI in a cost-effective AA light are very hard to find. Zanflare might be thinking about one, but they’ve gone quiet lately, and the only other option I can think of would be a much more expensive Eagletac.

The_Driver
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Phlogiston wrote:
Unfortunately, triples are too floody for me, so the E2L is off the menu.

Any chance of getting this LED into an M2?

That would probably be a unique light in the marketplace, because 5000K and 90 CRI in a cost-effective AA light are very hard to find. Zanflare might be thinking about one, but they’ve gone quiet lately, and the only other option I can think of would be a much more expensive Eagletac.

There are some:

Raylight Pineapple Brass 1xAA with Nichia 219C 4000K R9050

Zebralight SC64c with XP-L2 4000K 90CRI

The Zebra is not cheap though.

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maukka wrote:
The only amazing Cree I’ve seen so far is the 4800K XM-L2 EasyWhite (quad die) in the ZL H600Fd Mk3. Even if it is CRI 84 R9 19. The frosted lens makes wonders.

I have that same H600Fd III. It’s wonderful

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maukka, do you have any measurements for the new LG leds in the Jaxman E2L? still deciding whether to get the warm white nichias or the neutral LGs in the Jaxman e2l but i wouldn’t decide until the numbers are out from maukka Glasses .

maukka
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Should get the LG today or tomorrow.

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The real question is how will they act in direct drive Big Smile
Curious to see the numbers as well

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Jtm94 wrote:
The real question is how will they act in direct drive Big Smile
Curious to see the numbers as well

Almost sure they are far away from modern cree and nichias.
This is typical feature of LG and Samsung leds – they are very competitive at 350mA test current, but with current raise they look not so good. I suppose the reason is internal thermal resistance.

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Thermal resistances:
LG H35F0: 2.5°C/W
Cree XP-L: 2.2°C/W
Cree XP-L2: 2.2°C/W
Cree XP-G3: 3°C/W
Nichia 219C: 4.2°C/W
Cree XM-L2: 2.5°C/W (but with much bigger footprint)

So they are all very similar in that regard. The XP-L2 tolerates a much higher maximum current though because of the flipchip design.

Brightness @ 3A (LG doesn’t state the temperature, I assume 25°C):
LG H35F0 4000K: 882lm
Cree XP-L2 U6 4000K: 1000lm
Nichia 219C D240 4000K: 800lm
Cree XP-G3 R3 4000K: 910lm
So the XP-L2 is indeed noticeably more efficient (13% more lumens, basically two Cree Bins). Even the XP-G3 is brighter.

The LG LED still has some benefits though:
- cheaper and easier to get compared to the XP-L2 90CRI (Mouser is very expensive for low quantities)
- larger Die size compared to Nichia 219C and XP-G3 => more useful Beam in some lights

Does anybody have the datasheet of the LG LED?

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The_Driver wrote:
Phlogiston wrote:
Unfortunately, triples are too floody for me, so the E2L is off the menu.

Any chance of getting this LED into an M2?

That would probably be a unique light in the marketplace, because 5000K and 90 CRI in a cost-effective AA light are very hard to find. Zanflare might be thinking about one, but they’ve gone quiet lately, and the only other option I can think of would be a much more expensive Eagletac.

There are some:

Raylight Pineapple Brass 1xAA with Nichia 219C 4000K R9050

Zebralight SC64c with XP-L2 4000K 90CRI

The Zebra is not cheap though.

Thanks for the ideas Thumbs Up

I must admit, I was very tempted by the Reylight, but the 4000K colour temperature put me off in the end.

maukka wrote:
Should get the LG today or tomorrow.

I’ll be looking forward to seeing your data Smile

I hadn’t even heard about this LED until I saw this thread!

Benik3
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BTW what about some Osram Oslon SSL LED with CRI=95, R9>90, R13>90? Big Smile

Sorry for my English Sealed

maukka
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Haven’t tried Oslon SSL, but I did test one Osram Oslon for Chouster some time ago. It is hideously green regardless of drive current.

Oslon Square 4000K CRI min: 90, CRI typ: 95, R9 typ: 90
GW CSSRM1.BM-MPMR-XX55-1

This is in a Thrunite TC12 V2 with an SMO reflector.

Still waiting for the LG.

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