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.
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
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…
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.
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
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”.
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.
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.
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.
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
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.
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 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.
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.
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.
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.
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….
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.
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
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
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
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
www.virence.com
Physical and thermal properties of solder alloy - Shooting Beamshots With HDR - Nichia E21A Tint Shots
Its Okay To Be Smart - SmarterEveryDay - Deep Look - Veritasium - Tech Ingredients
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.
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
www.virence.com
Physical and thermal properties of solder alloy - Shooting Beamshots With HDR - Nichia E21A Tint Shots
Its Okay To Be Smart - SmarterEveryDay - Deep Look - Veritasium - Tech Ingredients
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…
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.
link to djozz tests
Optisolis = asymmetric
Asymmetric pads, asymmetric dies placement, and asymmetric blue pumps too
- Clemence
www.virence.com
Physical and thermal properties of solder alloy - Shooting Beamshots With HDR - Nichia E21A Tint Shots
Its Okay To Be Smart - SmarterEveryDay - Deep Look - Veritasium - Tech Ingredients
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.
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
I wonder how does a board in those cheap cob lights look like? Whether it would accomodate a string of these nichias?
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
what is the difference with the 6500k 9080 and these?
thanks.
https://www.virence.com/so/fM6kHo6W?cid=dd6382c4-d784-47f5-a4af-eaad9191...
Malkoff !
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
www.virence.com
Physical and thermal properties of solder alloy - Shooting Beamshots With HDR - Nichia E21A Tint Shots
Its Okay To Be Smart - SmarterEveryDay - Deep Look - Veritasium - Tech Ingredients
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,
Malkoff !
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
www.virence.com
Physical and thermal properties of solder alloy - Shooting Beamshots With HDR - Nichia E21A Tint Shots
Its Okay To Be Smart - SmarterEveryDay - Deep Look - Veritasium - Tech Ingredients
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
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.
link to djozz tests
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
www.virence.com
Physical and thermal properties of solder alloy - Shooting Beamshots With HDR - Nichia E21A Tint Shots
Its Okay To Be Smart - SmarterEveryDay - Deep Look - Veritasium - Tech Ingredients
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
www.virence.com
Physical and thermal properties of solder alloy - Shooting Beamshots With HDR - Nichia E21A Tint Shots
Its Okay To Be Smart - SmarterEveryDay - Deep Look - Veritasium - Tech Ingredients
Thanks Clemence.It may take me a while to translate that to something mortels can understand!
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
www.virence.com
Physical and thermal properties of solder alloy - Shooting Beamshots With HDR - Nichia E21A Tint Shots
Its Okay To Be Smart - SmarterEveryDay - Deep Look - Veritasium - Tech Ingredients
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
www.virence.com
Physical and thermal properties of solder alloy - Shooting Beamshots With HDR - Nichia E21A Tint Shots
Its Okay To Be Smart - SmarterEveryDay - Deep Look - Veritasium - Tech Ingredients
Clemence, any chance for 149AM from you?
I don’t think it will sell well. Too risky for me
- Clemence
www.virence.com
Physical and thermal properties of solder alloy - Shooting Beamshots With HDR - Nichia E21A Tint Shots
Its Okay To Be Smart - SmarterEveryDay - Deep Look - Veritasium - Tech Ingredients
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….
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.
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
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
link to djozz tests
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