[GB ended,discussion only] CRI > 80+ NICHIA 2000K-6500K [E21A/219B/219C/319A/144A/757GT-F1(Optisolis)]

1609 posts / 0 new
Last post
clemence
clemence's picture
Offline
Last seen: 2 months 1 week ago
Joined: 07/12/2015 - 02:58
Posts: 2474
Location: Bali - Indonesia

UPDATE 180217:
Very limited samples available for purchase at minimum cost only (freight & duty tax)

https://www.virence.com/blank-rwrlr/copy-of-nf2w757gt-f1
https://www.virence.com/blank-rwrlr/nf2w757gt-f1

- Clemence

ma tumba
Offline
Last seen: 2 hours 55 min ago
Joined: 07/28/2015 - 19:09
Posts: 187
Location: Russia

clemence wrote:
The VR16SP4 was designed for CCT switching (Warm/Cool option in a room).
- Clemence

That is what I’d love to have in an aleph type LE. But programmable drivers are unavailable. Just got those multi-color driver that djozz modded the other day, will see how this quad setup works with this driver.
ma tumba
Offline
Last seen: 2 hours 55 min ago
Joined: 07/28/2015 - 19:09
Posts: 187
Location: Russia

clemence wrote:
UPDATE 180217:
Very limited samples available for purchase at minimum cost only (freight & duty tax)

https://www.virence.com/blank-rwrlr/copy-of-nf2w757gt-f1
https://www.virence.com/blank-rwrlr/nf2w757gt-f1

- Clemence


Do you think you could install them onto a quad board? I’d like to have one with 4x of 5K
clemence
clemence's picture
Offline
Last seen: 2 months 1 week ago
Joined: 07/12/2015 - 02:58
Posts: 2474
Location: Bali - Indonesia

ma tumba wrote:
clemence wrote:
UPDATE 180217:
Very limited samples available for purchase at minimum cost only (freight & duty tax)

https://www.virence.com/blank-rwrlr/copy-of-nf2w757gt-f1
https://www.virence.com/blank-rwrlr/nf2w757gt-f1

- Clemence


Do you think you could install them onto a quad board? I’d like to have one with 4x of 5K

Sorry, I only have the 3000K and 5000K samples. No, it doesn’t fit the VR16SP4 MCPCB, only on the VR16S1 (offset). Being a low power LED, you can use almost any decent two pads non DTP boards

- Clemence

ma tumba
Offline
Last seen: 2 hours 55 min ago
Joined: 07/28/2015 - 19:09
Posts: 187
Location: Russia
clemence wrote:
Sorry, I only have the 3000K and 5000K samples. No, it doesn’t fit the VR16SP4 MCPCB, only on the VR16S1 (offset). Being a low power LED, you can use almost any decent two pads non DTP boards - Clemence

I see, I just wanted to put four 5K LEDs on one board to get 200+ lm from a single LE. I am just wondering now if there are any triple or quad 2-pad boards…

Schoki
Schoki's picture
Offline
Last seen: 1 month 2 weeks ago
Joined: 03/27/2017 - 15:34
Posts: 222
Location: Germany

Sorry if that’s already said, but from the optisolis pictures, you can even see two separate dies

djozz
djozz's picture
Offline
Last seen: 1 hour 1 sec ago
Joined: 09/07/2012 - 17:04
Posts: 17335
Location: Amsterdam

Schoki wrote:
Sorry if that’s already said, but from the optisolis pictures, you can even see two separate dies

Yes, far from the ideal flashlight type of light source, but maybe good for a, not so bright, flood light.
clemence
clemence's picture
Offline
Last seen: 2 months 1 week ago
Joined: 07/12/2015 - 02:58
Posts: 2474
Location: Bali - Indonesia

Optisolis = asymmetric
Asymmetric pads, asymmetric dies placement, and asymmetric blue pumps too

- Clemence

maukka
maukka's picture
Offline
Last seen: 3 days 3 hours ago
Joined: 12/31/2015 - 04:15
Posts: 2164
Location: Finland
djozz wrote:
If you mix two colour temperatures, the spectra simply add up and you have no different tint than if you use just one led of the in-between colour temperature, but not as good because the light will not be perfectly mixed.

There’s one possibly positive thing about mixing CCTs though. If you happen to get two mildly greenish emitters with large enough CCT gap, you can mix them and land closer to the BBL since the average is completely linear.

zak.wilson
Online
Last seen: 12 min 4 sec ago
Joined: 09/29/2014 - 14:27
Posts: 1004

Ra/R9 of 95/85 minimum is pretty exciting, though that emitter doesn’t look good for flashlights. A panel with 200 of them would be fun, much like the Viltrox camera lights.

Ceilingbounce – flashlight testing and runtime graphs for Android

ma tumba
Offline
Last seen: 2 hours 55 min ago
Joined: 07/28/2015 - 19:09
Posts: 187
Location: Russia

djozz wrote:
Schoki wrote:
Sorry if that’s already said, but from the optisolis pictures, you can even see two separate dies

Yes, far from the ideal flashlight type of light source, but maybe good for a, not so bright, flood light.

I wonder how does a board in those cheap cob lights look like? Whether it would accomodate a string of these nichias?
Lightbringer
Lightbringer's picture
Offline
Last seen: 25 min 51 sec ago
Joined: 08/30/2016 - 14:12
Posts: 12860
Location: nyc
ma tumba wrote:
Of course you are right. My goal is to get the high noon tint of 5700K by mixing the 5K and 6.5K. Re the imperfect blend: I want just a mule and I am sure that for this specific quad board with the LEDs positioned so closely to each other, the two tints would blend perfectly when the light is more than a few centimeters away from a target.

Actually, that’s not what they’re referring to.

The actual spectrum of any “white” LED is a strong peak in the blue, a dead zone around teal/bluegreen, and then a slow rise towards the yellow/orange, then falloff in the red.

If you were to combine the 2 individual spectra of, say, 4000K and 6000K, it wouldn’t exactly equal the spectrum of a 5000K LED. Being that cooler lights are generally a little more efficient, you’d be able to guesstimate its combined CCT to maybe 5100K instead, but the balance of all the individual colors wouldn’t be identical, even if you were to have a 5100K LED.

It’ll likely be close, but not exact. And the result can be a lower CRI if they’re not “in balance”.

09 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C0

virencelights
virencelights's picture
Offline
Last seen: 5 hours 39 min ago
Joined: 12/23/2012 - 19:53
Posts: 1269
Location: Knightsbridge, London, UK

what is the difference with the 6500k 9080 and these?
thanks.

https://www.virence.com/so/fM6kHo6W?cid=dd6382c4-d784-47f5-a4af-eaad9191...

Virence Custom Built; ArmyTek Viking Pro E21A 6500k 9080 Quadtrix, Jetbeam AAA 9080 E21A 9080 5700k, Jetbeam AAA Nichia HCRI Red Led.

clemence
clemence's picture
Offline
Last seen: 2 months 1 week ago
Joined: 07/12/2015 - 02:58
Posts: 2474
Location: Bali - Indonesia

HCRI9080 wrote:
what is the difference with the 6500k 9080 and these?
thanks.

https://www.virence.com/so/fM6kHo6W?cid=dd6382c4-d784-47f5-a4af-eaad9191...

The Optisolis is currently still under preparation to hit the market. It’s light quality is simply Nichia’s best to date. Far better than E21A 9080.
I made a spectrum comparison pictures in the product page, please check it.
But….It’s a very low power LED rated for only 0,3 watt per LED.

- Clemence

virencelights
virencelights's picture
Offline
Last seen: 5 hours 39 min ago
Joined: 12/23/2012 - 19:53
Posts: 1269
Location: Knightsbridge, London, UK

thanks so not really much for a flashlight?.
even Yuji LED don’t venture this side for flashlight LED’s which is a shame.
thanks,

clemence wrote:
HCRI9080 wrote:
what is the difference with the 6500k 9080 and these?
thanks.

https://www.virence.com/so/fM6kHo6W?cid=dd6382c4-d784-47f5-a4af-eaad9191...

The Optisolis is currently still under preparation to hit the market. It’s light quality is simply Nichia’s best to date. Far better than E21A 9080.
I made a spectrum comparison pictures in the product page, please check it.
But….It’s a very low power LED rated for only 0,3 watt per LED.

- Clemence

Virence Custom Built; ArmyTek Viking Pro E21A 6500k 9080 Quadtrix, Jetbeam AAA 9080 E21A 9080 5700k, Jetbeam AAA Nichia HCRI Red Led.

clemence
clemence's picture
Offline
Last seen: 2 months 1 week ago
Joined: 07/12/2015 - 02:58
Posts: 2474
Location: Bali - Indonesia

HCRI9080 wrote:
thanks so not really much for a flashlight?.
even Yuji LED don’t venture this side for flashlight LED’s which is a shame.
thanks,

clemence wrote:
HCRI9080 wrote:
what is the difference with the 6500k 9080 and these?
thanks.

https://www.virence.com/so/fM6kHo6W?cid=dd6382c4-d784-47f5-a4af-eaad9191...

The Optisolis is currently still under preparation to hit the market. It’s light quality is simply Nichia’s best to date. Far better than E21A 9080.
I made a spectrum comparison pictures in the product page, please check it.
But….It’s a very low power LED rated for only 0,3 watt per LED.

- Clemence

For flashlights uses, even the “modest” R9050 light quality is already extremely good compared to “common” CRI. As long as you are not lighting up next to someone else with Yuji or Optisolis of course.

Here’s the comparison chart:

- Clemence

ma tumba
Offline
Last seen: 2 hours 55 min ago
Joined: 07/28/2015 - 19:09
Posts: 187
Location: Russia

I wonder if there are any 16/17mm triple mcpcbs with 2-pad contacts, suitable for the optisolis? I think that standard xp boards could be used if the central pad is insulated by kapton tape but the LED would sit on a very narrow margin of the pad. I’d rather avoid this hack

djozz
djozz's picture
Offline
Last seen: 1 hour 1 sec ago
Joined: 09/07/2012 - 17:04
Posts: 17335
Location: Amsterdam

Someone has messed up those graphs above: in the 5000K graph it seems to me that R9050 and R9080 is reversed, in the second graph the red line is missing.

clemence
clemence's picture
Offline
Last seen: 2 months 1 week ago
Joined: 07/12/2015 - 02:58
Posts: 2474
Location: Bali - Indonesia
djozz wrote:
Someone has messed up those graphs above: in the 5000K graph it seems to me that R9050 and R9080 is reversed, in the second graph the red line is missing.

Uhm….that’s me. Thanks for pointing that Jos.

3000K chart fixed.
And those 5000K chart wasn’t misplaced. I used the chart from Nichia data sheet:

- Clemence

Billy X
Billy X's picture
Offline
Last seen: 1 month 2 weeks ago
Joined: 02/03/2013 - 05:50
Posts: 557
Location: South of France

Clemence wrote; Correct! Mixing several different CCTs will also (in most cases) results in lower CRI than individual CCT. You can check Maukka’s test to see it. It’s more like a trick.

Which test is that,I’m curious?

clemence
clemence's picture
Offline
Last seen: 2 months 1 week ago
Joined: 07/12/2015 - 02:58
Posts: 2474
Location: Bali - Indonesia

Billy X wrote:
Clemence wrote; Correct! Mixing several different CCTs will also (in most cases) results in lower CRI than individual CCT. You can check Maukka’s test to see it. It’s more like a trick.

Which test is that,I’m curious?

https://imgur.com/a/xP55G

Billy X
Billy X's picture
Offline
Last seen: 1 month 2 weeks ago
Joined: 02/03/2013 - 05:50
Posts: 557
Location: South of France

Thanks Clemence.It may take me a while to translate that to something mortels can understand!

clemence
clemence's picture
Offline
Last seen: 2 months 1 week ago
Joined: 07/12/2015 - 02:58
Posts: 2474
Location: Bali - Indonesia
djozz wrote:
Someone has messed up those graphs above: in the 5000K graph it seems to me that R9050 and R9080 is reversed, in the second graph the red line is missing.

You’re right Djozz, the charts must be switched right off from the factory. It’s too obvious. They have to fix the data sheet.

- Clemence

clemence
clemence's picture
Offline
Last seen: 2 months 1 week ago
Joined: 07/12/2015 - 02:58
Posts: 2474
Location: Bali - Indonesia

As requested:

Nothing changed, everything is as shot except exposure adjustments (those were two different flashlights with slightly different brightnesses). 219C has greener tint while E21A is right on the target (check Maukka’s chart below)

WB adjusted to get rid of tint differences. This 219C has R9 = 76, one of the best 219C in my collection. But E21A still wins.

Don’t trust your eyes until you see numbers

- Clemence

Agro
Agro's picture
Online
Last seen: 50 sec ago
Joined: 05/14/2017 - 11:16
Posts: 6310
Location: Ślōnsk

Clemence, any chance for 149AM from you?

clemence
clemence's picture
Offline
Last seen: 2 months 1 week ago
Joined: 07/12/2015 - 02:58
Posts: 2474
Location: Bali - Indonesia

I don’t think it will sell well. Too risky for me

- Clemence

Agro
Agro's picture
Online
Last seen: 50 sec ago
Joined: 05/14/2017 - 11:16
Posts: 6310
Location: Ślōnsk

Sad but understandable.
Personally I think the same….but just initially.
That’s because there are no stars for it and it is not well known.
But for most applications that I can think of this LED should be technically better than XHP70.2 (I don’t know the price, so it may not be so good commercially). I hope it catches up….

Wieselflinkpro
Wieselflinkpro's picture
Offline
Last seen: 13 hours 52 min ago
Joined: 05/21/2015 - 04:34
Posts: 975
Location: Germany - TLF

It could fit the Virence VR16S1 Star with scratching.
And as driver it would work with 4S Buck-Driver like it is in the GT.
Haikelite MT07S could be a good host for it.

… but its of cause your decision.

zak.wilson
Online
Last seen: 12 min 4 sec ago
Joined: 09/29/2014 - 14:27
Posts: 1004

Being higher voltage than the XHP70.2 used, the MT07S would probably drive the 149 pretty hard. Given the mode spacing of that light, I suspect it would work well.

I’d buy one, but probably only one. That doesn’t make it worth stocking.

Ceilingbounce – flashlight testing and runtime graphs for Android

djozz
djozz's picture
Offline
Last seen: 1 hour 1 sec ago
Joined: 09/07/2012 - 17:04
Posts: 17335
Location: Amsterdam
djozz wrote:
clemence wrote:
djozz wrote:
Thumbs Up Thumbs Up And how is the tint? I have a few of the E21A 6500K R9080 leds but have not used them yet.

Jos, did the 2000K packet arrived? The last 6500K shipment was relatively fast.

- Clemence


No, it did not arrive yet, must be stuck somewhere. Usually packages show up again at some point, I’m waiting for that Smile

And so it did a few days ago, thanks Clemence for checking the whereabouts of the package for me!

Here is the first of the E21A sm205 R9050 leds in a Lumintop Tool. The tint and colour reproduction is not far from the 2000K Stanley led that I tested before, of course the Nichia has just that bit more red in it Smile

Pages