Most effecient chips!

[Moflow]

@ChiefRunningPhist check out the broad red spectrum on the osram duris led

https://www.mouser.co.uk/ProductDetail/OSRAM-Opto-Semiconductors/GR-PSLR3113-GTHP-R1R2-1?qs=sGAEpiMZZMt82OzCyDsLFBvy5%2BDgkAt0z%2BtSA%2BnZeGw=

The above led Starts at 550nm peaks at 660nm finishes at 800nm. Quite a broad band of red.
I don't know how efficient it is but looks like you could use a few of these instead of 3 or 4 different red, far red, ir leds.
Although you'd have no separate control on infra red if you wanted to run EOD treatment.

For instance, the Osram ssl 150 hyper red starts at 600nm peaks 660nm finishes at 700nm

 

[Stephenj37826]

@ChiefRunningPhist check out the broad red spectrum on the osram duris led

https://www.mouser.co.uk/ProductDetail/OSRAM-Opto-Semiconductors/GR-PSLR3113-GTHP-R1R2-1?qs=sGAEpiMZZMt82OzCyDsLFBvy5%2BDgkAt0z%2BtSA%2BnZeGw=

The above led Starts at 550nm peaks at 660nm finishes at 800nm. Quite a broad band of red.
I don't know how efficient it is but looks like you could use a few of these instead of 3 or 4 different red, far red, ir leds.
Although you'd have no separate control on infra red if you wanted to run EOD treatment.

For instance, the Osram ssl 150 hyper red starts at 600nm peaks 660nm finishes at 700nm

We looked at the S5 3030 back in the 561C days when we originally designed the QB304. Osrams white weren't and still aren't there efficacy wise. They do have a flip chip 3030 coming from what I hear so it may be in direct competition to the lm301b.
The Duris S5 reds are phosphorus converted red. The efficiency sucks. Last time I checked it's south of 2.0 umol/j. Im thinking it was 1.7 at 120ma back in 17. Much better off with SSL Red, Square deep red and SSL far red. Really depends on how hardypur gonna run em. SSL and square are close at 250ma.

 

[Rocket Soul]

@ChiefRunningPhist check out the broad red spectrum on the osram duris led

https://www.mouser.co.uk/ProductDetail/OSRAM-Opto-Semiconductors/GR-PSLR3113-GTHP-R1R2-1?qs=sGAEpiMZZMt82OzCyDsLFBvy5%2BDgkAt0z%2BtSA%2BnZeGw=

The above led Starts at 550nm peaks at 660nm finishes at 800nm. Quite a broad band of red.
I don't know how efficient it is but looks like you could use a few of these instead of 3 or 4 different red, far red, ir leds.
Although you'd have no separate control on infra red if you wanted to run EOD treatment.

For instance, the Osram ssl 150 hyper red starts at 600nm peaks 660nm finishes at 700nm

Cutter got some 5050 chips with the same spectrum. I think Teknik clocked them in at 2ppf/w at lower current. Im still waiting to set them up.

I know theyre not all that efficient and i sorta committed to buy them on some higher specs i got from Cutter. It was also my 40th birthday and ive wanted phosphored led chips with 660 peak for the last 2 years. I really hope HLG could make something like this work, id be all over it.

 

[ChiefRunningPhist]

@ChiefRunningPhist check out the broad red spectrum on the osram duris led

https://www.mouser.co.uk/ProductDetail/OSRAM-Opto-Semiconductors/GR-PSLR3113-GTHP-R1R2-1?qs=sGAEpiMZZMt82OzCyDsLFBvy5%2BDgkAt0z%2BtSA%2BnZeGw=

The above led Starts at 550nm peaks at 660nm finishes at 800nm. Quite a broad band of red.
I don't know how efficient it is but looks like you could use a few of these instead of 3 or 4 different red, far red, ir leds.
Although you'd have no separate control on infra red if you wanted to run EOD treatment.

For instance, the Osram ssl 150 hyper red starts at 600nm peaks 660nm finishes at 700nm

Haha thanks man! That sounds similar to a Nichia red that I was looking at a while ago..


I'm very interested in non phosphored monos.

 

[nachooo]

I have been looking for a high efficiency 365 nm led...I have been reading this led specs
https://oled-tech.de/files/5/CUN66A1B_R10.pdf
they said at 500ma 3,6 Volts gives 900 mw of radiant flux..this sound to me like a 50% efficiency . It seems too much for a 365 nm led..Is it posible? I am wrong with the calculations?
Thanks in advance

 

[Rocket Soul]

I have been looking for a high efficiency 365 nm led...I have been reading this led specs
https://oled-tech.de/files/5/CUN66A1B_R10.pdf
they said at 500ma 3,6 Volts gives 900 mw of radiant flux..this sound to me like a 50% efficiency . It seems too much for a 365 nm led..Is it posible? I am wrong with the calculations?
Thanks in advance

Sounds a lot. But i dont think youre using the right numbers. First, its almost 4V at 500mA.
Also, there are several flux bins that go from 500mW to 1000mW. You need to trust the seller they are giving you the high bin.

But mainly check the operating life: 1000 hours at full power and unrealistic 25C. Thats like not even 3 months of 12/12.

 

[Rocket Soul]

Haha thanks man! That sounds similar to a Nichia red that I was looking at a while ago..
View attachment 4339457

I'm very interested in non phosphored monos.

But this is phosphored, right? Monos tend to be much more narrow on wavelength

 

[nachooo]

Sounds a lot. But i dont think youre using the right numbers. First, its almost 4V at 500mA.
Also, there are several flux bins that go from 500mW to 1000mW. You need to trust the seller they are giving you the high bin.

But mainly check the operating life: 1000 hours at full power and unrealistic 25C. Thats like not even 3 months of 12/12.

I did not notice the operating life..only 1000 hours..and also they are expensive...16,90 € in the German store...probably cheaper options in the deep chinese market lol....

 

[welight]

XPG3 PhotoRed should in stock in June

Cheers

 

[nachooo]

XPG3 PhotoRed should in stock in June

Cheers

Just a month and a half since I bought the Osram square…..history of my life…

 

[Rocket Soul]

XPG3 PhotoRed should in stock in June

Cheers

What flux bins will be available and which of your strips would you be able to mount them to?

 

[ChiefRunningPhist]

I have been looking for a high efficiency 365 nm led...I have been reading this led specs
https://oled-tech.de/files/5/CUN66A1B_R10.pdf
they said at 500ma 3,6 Volts gives 900 mw of radiant flux..this sound to me like a 50% efficiency . It seems too much for a 365 nm led..Is it posible? I am wrong with the calculations?
Thanks in advance

So it looks like in the first table they give an average based on the highlighted bins in the second table. Without testing I can't say for certain but it looks like flux bins "J4-K1" can be matched with voltage bin "b."

If you bought "b" voltage bins and were given an equally distributed qty of b voltage bins fluxing between "J4-K1", then you'd have an average efficiency of 50% like you were calculating . This higher effeciency echoes what I've heard about the chips through word of mouth.

3.6v × 0.5A = 1.8 operating watts
0.9w output ÷ 1.8 operating watts
=
0.5; 50%

But this is phosphored, right? Monos tend to be much more narrow on wavelength

Yep it's phosphored, why I ditched it. It gets dismal effeciency (19.4%)

XPG3 PhotoRed should in stock in June

Cheers

U da man thanks!

 

[ChiefRunningPhist]

MOST EFFECIENT CHIPS:
- 300nm -
- 320nm -

- 365nm - Seoul Viosys CUN66B1B- 55.5%
- 385nm - Seoul Viosys CUN86A1B - 68.6%
- 395nm - Nichia 33B -U395 - 45.2%
- 405nm - Seoul Viosys CUN06B1B- 66.3%

- 420nm - Seoul Viosys CUN26B1B - 59.4%
- 445nm Osram square - 72.0%
- 480nm -

- 525nm -
- PC Green - Nichia (1717) - 41.0%

- 600nm -
- 630nm -
- 660nm - CREE XP-G3 - ~73.0%
- 680nm -

- 730nm - Osram square - 56.0%
- 750nm -



*UPDATED:
365nm
395nm
405nm
660nm

If you can fill in any of these blanks, or can amend current models with better ones, quote the post and reply with any updated fields. Thanks

MOST EFFECIENT CHIPS:
- 300nm -
- 320nm -

- 365nm - Seoul Viosys CUN66B1B- 55.5%
- 385nm - Seoul Viosys CUN86A1B - 68.6%
- 395nm - Seoul Viosys CUN96B1B - 71.4%
- 405nm - Seoul Viosys CUN06B1B- 66.3%

- 420nm - Seoul Viosys CUN26B1B - 59.4%
- 445nm - Osram square - 72.0%
- 480nm -
- PC Blue -

- 525nm -
- PC Green - Nichia (1717) - 41.0%

- 600nm -
- 630nm -
- 660nm - CREE XP-G3 - ~73.4%
- 680nm -

- 730nm - Osram square - 56.0%
- 750nm -

**
UPDATED:
365nm
385nm
395nm
405nm
420nm
660nm

If you can fill in any of these blanks, or can amend current models with better ones, quote the post and reply with any updated fields. Thanks

 

[nachooo]

View attachment 4339677View attachment 4339663

So it looks like in the first table they give an average based on the highlighted bins in the second table. Without testing I can't say for certain but it looks like flux bins "J4-K1" can be matched with voltage bin "b."

If you bought "b" voltage bins and were given an equally distributed qty of b voltage bins fluxing between "J4-K1", then you'd have an average efficiency of 50% like you were calculating . This higher effeciency echoes what I've heard about the chips through word of mouth.

3.6v × 0.5A = 1.8 operating watts
0.9w output ÷ 1.8 operating watts
=
0.5; 50%


Yep it's phosphored, why I ditched it. It gets dismal effeciency (19.4%)


U da man thanks!

Sadly the 1000 hours operating life of that 365nm led .is a no go….maybe for curing nails or similar things..but not for continuous use

 

[ChiefRunningPhist]

Sadly the 1000 hours operating life of that 365nm led .is a no go….maybe for curing nails or similar things..but not for continuous use

Na, it'll last longer. It's ceramic. 1000hrs is only the time they tested it for. 0/10 failures in every category. I would buy with confidence.

UVB is the WV range (<320nm) with limited life span compared to the others.

 

[InTheValley]

cooling boosts efficiency also, no? that is what drove the Mars 300's efficiency through the ground, being on a thin heatsink. good luck with your build bro.

 

[oldbeancounter]

cooling boosts efficiency also, no? that is what drove the Mars 300's efficiency through the ground, being on a thin heatsink. good luck with your build bro.

Yep, good heatsink I think makes any high power LED you put on it likely run pretty cool and any heat will be above light where heat sinks are correct?

 

[oldbeancounter]

Na, it'll last longer. It's ceramic. 1000hrs is only the time they tested it for. 0/10 failures in every category. I would buy with confidence.

UVB is the WV range (<320nm) with limited life span compared to the others.

ceramic, is that where things are headed?
I have worked with ceramic tile that was outside 90 years in the sun, rain, snow etc and was like new still but some cracked from freeze thaw cycles not heat.nothing beats it for heat maybe the reason space shuttle was clad in it?

 

[ChiefRunningPhist]

ceramic, is that where things are headed?
I have worked with ceramic tile that was outside 90 years in the sun, rain, snow etc and was like new still but some cracked from freeze thaw cycles not heat.nothing beats it for heat maybe the reason space shuttle was clad in it?

Haha yep, they've been using ceramic for awhile now and as you mentioned, for it's great thermal properties.

I'm not super experienced but I haven't seen any 3535 that weren't ceramic yet. Most 3535 that I've seen are what they refer to as "power packages" with higher currents ranging from 0.5A to 1A typically, and dissipating 1W-3W generally.

Cause I'm bored lol ...

Example 3030 power density (LM301b):
0.35W - (2.8V, 0.125A)
3030 = 3.0mm × 3.0mm; 0.000009m2
0.35W ÷ 0.000009m2
=
38,888.89W/m2; 38.88kW/m2

Example 3535 power density (365nm SV):
1.85W - (3.7V, 0.5A)
3535 = 3.5mm × 3.5mm; 0.00001225m2
1.85W ÷ 0.00001225m2
=
151,020.41W/m2; 151.02kW/m2

3535 power density vs 3030 power density:
151.02kW/m2 ÷ 38.8902kW/m2
=
3.88×


~3.5× - 4.0× more power per area, or per m2, in a 3535 than 3030

 

[Stephenj37826]

At the end of the day no substrate will be king. Any material layer between the die and the pcb is a thermal barrier. Flip chip is great and eventually CSP will be the future soon.