QUANTUM BOARD QB 288 3000K 80 CRI Vs 3000K 90 CRI Show Down
- Thread starter NapalmD
- Start date
Mullumbimby
Well-Known Member
Keep up the good work 
NapalmD
Well-Known Member
Day 55
How's it goin fellas!
2 weeks to go. I'll feed them tomorrow and Tuesday then start straight water.
I'm still leaning towards the 90.
Really looking forward to the sog next.
A small bud snapped and dried in the 90 tent and the terps were amazing, totally different than my last run with her. Gonna try a different drying technique yet again with these by cutting the base of each plant 2 to 3 days before lights out and then leave in dark as long as I can like last run. Just as they are in the scrog net.
80
90
How's it goin fellas!
2 weeks to go. I'll feed them tomorrow and Tuesday then start straight water.
I'm still leaning towards the 90.
Really looking forward to the sog next.
A small bud snapped and dried in the 90 tent and the terps were amazing, totally different than my last run with her. Gonna try a different drying technique yet again with these by cutting the base of each plant 2 to 3 days before lights out and then leave in dark as long as I can like last run. Just as they are in the scrog net.
80
90
legalcanada
Well-Known Member
awesome thread, thanks
NapalmD
Well-Known Member
Day 63
Hope you guys are having a good weekend.
About a week till lights out.
Can't wait till these are dry and ready to sample. So far the 80 is bulkier, the 90 looks a few days ahead and less leaf.
I think a mix of the two would be superior but don't want to make that call yet until the next side by side sog, but that's what it looks like so far.
80
90
Hope you guys are having a good weekend.
About a week till lights out.
Can't wait till these are dry and ready to sample. So far the 80 is bulkier, the 90 looks a few days ahead and less leaf.
I think a mix of the two would be superior but don't want to make that call yet until the next side by side sog, but that's what it looks like so far.
80
90
Rokus
Active Member
Awesome grow!
I'm very curious if the 90cri will actually become the better quality 'connaisseur bud' or not!
I have been following the high cri industry for a while now, and new wider spectra are finally 'coming to light!
Too bad the efficiency of these purple fosfor based 98cri cobs is not nearly there yet!
cannot post a link here because its my first post but it's from yuji leds and its their VTC version.
yujiintl com/high-cri-led-lighting
What I want to say is that cree's 90cri isn't even close to sunlight where the newer technology finally is, so we can really only tell which is really better in a few years time. The one with more far red + deep purple + green vs the one dominating in the 450 + 650 range?
To me this 90cri is just a slightly different mix of more or less the same colour peaks, a bit more blue and far red on the 90cri, a bit more green, but its minimal.
So Im surprised to see such distinct differences!
I'm very curious if the 90cri will actually become the better quality 'connaisseur bud' or not!
I have been following the high cri industry for a while now, and new wider spectra are finally 'coming to light!
Too bad the efficiency of these purple fosfor based 98cri cobs is not nearly there yet!
cannot post a link here because its my first post but it's from yuji leds and its their VTC version.
yujiintl com/high-cri-led-lighting
What I want to say is that cree's 90cri isn't even close to sunlight where the newer technology finally is, so we can really only tell which is really better in a few years time. The one with more far red + deep purple + green vs the one dominating in the 450 + 650 range?
To me this 90cri is just a slightly different mix of more or less the same colour peaks, a bit more blue and far red on the 90cri, a bit more green, but its minimal.
So Im surprised to see such distinct differences!
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https://www.yujiintl.com/custom-led-printed-circuit-boards
Is this the link u wanted to post? These would be sweet on cutters new sol skin boards with some extra red to help the red peak
Rokus
Active Member
Well, there's so much good info to be found on this newer different phosphor technology.
Toshiba sells cobs with the same technology, (add point to link)
trir-pj com/2015/wp-content/uploads/2016/03/TRI-R_brochure2016_en.pdf
trir-pj com/en/lineup/?lang=en
I like the 2828 because if im correct, they could take the place of a cxb3590 in your growlight without changing anything but the chip!
And the 5000K is already at 100 lumens/Watt
And yuji is also on alibaba btw, ww shipping, small orders.. but their pcbs dont have alot of output, so that makes them expensive because you need to buy alot of them to fill up a tent, they also have cobs but the VTC (98cri) ones are only in small sizes.
this is the better link:
store.yujiintl com/collections/vtc-series
but they only do about 70-80 l/W if I calculated that correctly
Twice as power hungry, to get that little bit wider spectrum...
Im sure if you ran it @ 2x the power in a side by side with a 90cri quantum board, it would win!
Makes you realize just how efficient 90cri quantum boards really are! And on the day 98cri have reached that level, other 90cri chips will already be twice as efficient... In other words they will never really catch up! Im still in love with 98cri though, even if ive never seen them shine.
I so hope 99cri will one day be so efficient it's become mainstream!
Because who knows where's the limits in this?? Never a day where they say: Ok now we have tried it ALL, this is the best phosfor combination you can make for white light, period.
Btw here's what Ted from Yuji has to say about it:
"
Hi Rokus,
Thanks for the reply , the information you sent seems quit interesting .
The reason why VTC series LED have lower Lumen output compare to normal bule chip LED is because of the violet chip . CRI and Lumen output is two opposite value and you can't have them both .
For horticulture business , CRI is not a critical value but for film /photography business , CRI means a lot ."
And:
"However I think if you want to fulfill the gap or defect of your current spectrum , the best solution is to use a violet LED package (violet chip with out phosphor ) instead of a VTC series daylight LED , that will give you the 380nm you want without other wavelength .
Of course the advantage for use VTC series 5600K LED is that it is a existing product and require no MOQ.
Please let me know if you have any futher questions , I think discuss via email is much convenient , isn't it ?
Best regards ,
Ted Bai
"
Toshiba sells cobs with the same technology, (add point to link)
trir-pj com/2015/wp-content/uploads/2016/03/TRI-R_brochure2016_en.pdf
trir-pj com/en/lineup/?lang=en
I like the 2828 because if im correct, they could take the place of a cxb3590 in your growlight without changing anything but the chip!
And the 5000K is already at 100 lumens/Watt
And yuji is also on alibaba btw, ww shipping, small orders.. but their pcbs dont have alot of output, so that makes them expensive because you need to buy alot of them to fill up a tent, they also have cobs but the VTC (98cri) ones are only in small sizes.
this is the better link:
store.yujiintl com/collections/vtc-series
but they only do about 70-80 l/W if I calculated that correctly
Twice as power hungry, to get that little bit wider spectrum...
Im sure if you ran it @ 2x the power in a side by side with a 90cri quantum board, it would win!
Makes you realize just how efficient 90cri quantum boards really are! And on the day 98cri have reached that level, other 90cri chips will already be twice as efficient... In other words they will never really catch up! Im still in love with 98cri though, even if ive never seen them shine.
I so hope 99cri will one day be so efficient it's become mainstream!
Because who knows where's the limits in this?? Never a day where they say: Ok now we have tried it ALL, this is the best phosfor combination you can make for white light, period.
Btw here's what Ted from Yuji has to say about it:
"
Hi Rokus,
Thanks for the reply , the information you sent seems quit interesting .
The reason why VTC series LED have lower Lumen output compare to normal bule chip LED is because of the violet chip . CRI and Lumen output is two opposite value and you can't have them both .
For horticulture business , CRI is not a critical value but for film /photography business , CRI means a lot ."
And:
"However I think if you want to fulfill the gap or defect of your current spectrum , the best solution is to use a violet LED package (violet chip with out phosphor ) instead of a VTC series daylight LED , that will give you the 380nm you want without other wavelength .
Of course the advantage for use VTC series 5600K LED is that it is a existing product and require no MOQ.
Please let me know if you have any futher questions , I think discuss via email is much convenient , isn't it ?
Best regards ,
Ted Bai
"
Last edited:
Those yuji chips would be sweet on the sol skin boards with a higher lumen chip in the other channelWell, there's so much good info to be found on this newer different phosphor technology.
Toshiba sells cobs with the same technology, (add point to link)
trir-pj com/2015/wp-content/uploads/2016/03/TRI-R_brochure2016_en.pdf
trir-pj com/en/lineup/?lang=en
View attachment 3983249
I like the 2828 because if im correct, they could take the place of a cxb3590 in your growlight without changing anything but the chip!
And the 5000K is already at 100 lumens/Watt
View attachment 3983278
And yuji is also on alibaba btw, ww shipping, small orders.. but their pcbs dont have alot of output, so that makes them expensive because you need to buy alot of them to fill up a tent, they also have cobs but the VTC (98cri) ones are only in small sizes.
this is the better link:
store.yujiintl com/collections/vtc-series
but they only do about 70-80 l/W if I calculated that correctly
Twice as power hungry, to get that little bit wider spectrum...
View attachment 3983292
Im sure if you ran it @ 2x the power in a side by side with a 90cri quantum board, it would win!
Makes you realize just how efficient 90cri quantum boards really are! And on the day 98cri have reached that level, other 90cri chips will already be twice as efficient... In other words they will never really catch up! Im still in love with 98cri though, even if ive never seen them shine.
I so hope 99cri will one day be so efficient it's become mainstream!
Because who knows where's the limits in this?? Never a day where they say: Ok now we have tried it ALL, this is the best phosfor combination you can make for white light, period.
Btw here's what Ted from Yuji has to say about it:
"
Hi Rokus,
Thanks for the reply , the information you sent seems quit interesting .
The reason why VTC series LED have lower Lumen output compare to normal bule chip LED is because of the violet chip . CRI and Lumen output is two opposite value and you can't have them both .
For horticulture business , CRI is not a critical value but for film /photography business , CRI means a lot ."
And:
"However I think if you want to fulfill the gap or defect of your current spectrum , the best solution is to use a violet LED package (violet chip with out phosphor ) instead of a VTC series daylight LED , that will give you the 380nm you want without other wavelength .
Of course the advantage for use VTC series 5600K LED is that it is a existing product and require no MOQ.
Please let me know if you have any futher questions , I think discuss via email is much convenient , isn't it ?
Best regards ,
Ted Bai
"
Mullumbimby
Well-Known Member
These are the important aspects.Twice as power hungry, to get that little bit wider spectrum...
Im sure if you ran it @ 2x the power in a side by side with a 90cri quantum board, it would win!
I so hope 99cri will one day be so efficient it's become mainstream!
The reason why VTC series LED have lower Lumen output compare to normal bule chip LED is because of the violet chip . CRI and Lumen output is two opposite value and you can't have them both .
For horticulture business , CRI is not a critical value but for film /photography business , CRI means a lot ."
"
Higher cri = lower PAR/watt so we will always be looking at a trade off.
This is a great thread, because it seems to be pointing to the logical conclusion that the lower cri (higher PAR) s making fatter buds:
Let's hope that the higher cri (lower PAR) is making super-dank weed
.There's not likely to be a free lunch though.
In my tent, I've got 8x5000K 70cri, 4x3000K 80cri and 4x3000K 90cri, hoping for the best. Many thanks to @NapalmD , for putting in the hard yards and recording the results.
klx
Well-Known Member
Nothin like a tenner each way eh Mullum? Interested to hear how that mix turns out. I have all 3000k 90cri in my flower room but not married to em!!
Mullumbimby
Well-Known Member
Haha! I wasn't just hoping for the best lol.
At the time, it was my understanding that the plants cared less about the colour temperature than they did about the PAR and those 5000K CXBs put out a shedload of light.
My first grow looked great, until I stepped on my timer and the suckers came on for 2 hours in the middle of the night for a whole week. Don't get me started lol...
Ripper batch of Rick Simpson Oil though - if you like narcotics. This stuff is way to fierce for recreational use - it pretty much renders you (well, me and anyone else who's tried it anyway) comatose, so you could say that the THC content of the grow was 'up there'
coreywebster
Well-Known Member
Bit off topic but.. What's the smell like when making RSO? I have been wanting to make some for a while but the thought it would stink out my neighbourhood has put me off.
Mullumbimby
Well-Known Member
It stinks - but not really of weed, just Isopropyl - it's a kind of hospital smell.
You have to do it outside really.
Towards the end, when it was thickening up, it was more like dope, but not really worse than your grow-room. I finished off indoors and it was ok.
Rokus
Active Member
You mean for lighting fluorescent sea life?! I was thinking about that one also! Would be an awesome light for that!!
Rocket Soul
Well-Known Member
I was also onto the yuji site for these. The violet based leds have comparably very low lum/watt but you have to remember they might still have decent electrical efficiency. On bridgelux spectrum LER drops from around 320 lum/watt to 260 lum/watt (from my baked memory, could be wrongWell, there's so much good info to be found on this newer different phosphor technology.
Toshiba sells cobs with the same technology, (add point to link)
trir-pj com/2015/wp-content/uploads/2016/03/TRI-R_brochure2016_en.pdf
trir-pj com/en/lineup/?lang=en
View attachment 3983249
I like the 2828 because if im correct, they could take the place of a cxb3590 in your growlight without changing anything but the chip!
And the 5000K is already at 100 lumens/Watt
View attachment 3983278
And yuji is also on alibaba btw, ww shipping, small orders.. but their pcbs dont have alot of output, so that makes them expensive because you need to buy alot of them to fill up a tent, they also have cobs but the VTC (98cri) ones are only in small sizes.
this is the better link:
store.yujiintl com/collections/vtc-series
but they only do about 70-80 l/W if I calculated that correctly
Twice as power hungry, to get that little bit wider spectrum...
View attachment 3983292
Im sure if you ran it @ 2x the power in a side by side with a 90cri quantum board, it would win!
Makes you realize just how efficient 90cri quantum boards really are! And on the day 98cri have reached that level, other 90cri chips will already be twice as efficient... In other words they will never really catch up! Im still in love with 98cri though, even if ive never seen them shine.
I so hope 99cri will one day be so efficient it's become mainstream!
Because who knows where's the limits in this?? Never a day where they say: Ok now we have tried it ALL, this is the best phosfor combination you can make for white light, period.
Btw here's what Ted from Yuji has to say about it:
"
Hi Rokus,
Thanks for the reply , the information you sent seems quit interesting .
The reason why VTC series LED have lower Lumen output compare to normal bule chip LED is because of the violet chip . CRI and Lumen output is two opposite value and you can't have them both .
For horticulture business , CRI is not a critical value but for film /photography business , CRI means a lot ."
And:
"However I think if you want to fulfill the gap or defect of your current spectrum , the best solution is to use a violet LED package (violet chip with out phosphor ) instead of a VTC series daylight LED , that will give you the 380nm you want without other wavelength .
Of course the advantage for use VTC series 5600K LED is that it is a existing product and require no MOQ.
Please let me know if you have any futher questions , I think discuss via email is much convenient , isn't it ?
Best regards ,
Ted Bai
"
. If the Yuji/toshiba chips have a similar drop you might find that these violet chips are closer to 50% efficiency than you might think. I still dont know how to extract LER from a datasheet spectrum but im pretty sure @alesh knows how to do it. But maybe better in its own thread as this a growjournal
Rokus
Active Member
Tnx for the info! Finally a new lead..!
& Agreed sorry for messing things up over here... Still curious what will be the results of this grow, although I would not dare to say 90cri is better, or 80cri, it's different. Even Yuji doesn't match the sun as close as some ceramic metal halide lamps can do so in a way it's not about that....
I think mixing 3000k 90cri with a good 5600K would be nice!
Although Im very curious if the faster maturation with the 90cri, has everything to do with that extra deep-far red!
Do we even want our plants to mature faster if it gets us smaller buds in the end?
& Agreed sorry for messing things up over here... Still curious what will be the results of this grow, although I would not dare to say 90cri is better, or 80cri, it's different. Even Yuji doesn't match the sun as close as some ceramic metal halide lamps can do so in a way it's not about that....
I think mixing 3000k 90cri with a good 5600K would be nice!
Although Im very curious if the faster maturation with the 90cri, has everything to do with that extra deep-far red!
Do we even want our plants to mature faster if it gets us smaller buds in the end?
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DrBlaze
Well-Known Member
Wow those chipmakers aren't lying. The 90's sure do render colors better. Those 2 pictures look like they were taken by different cameras.
As far as the bulk goes, I think droman80 said the same thing in his thread... that the 80 cri looked impressive, but after harvest the 90 cri buds ended up being denser, and gave better weight. It will be interesting to see the results. Thanks for documenting this for us