Old school grower
Active Member
Great thanks.It looks good. I haven't digitized the various 3000K 90CRI spectrums, but they all seem pretty similar. I don't think there's generally going to be a substantial difference from one brand to another.
Great thanks.It looks good. I haven't digitized the various 3000K 90CRI spectrums, but they all seem pretty similar. I don't think there's generally going to be a substantial difference from one brand to another.
3000k 80cri plus arcadia d3 + 12% uv bulb brings it on.Dynamic spectrums:
These combos will have spectrum enhancement on separate channels so we will be able to control it better. Combos are (not yet set in stone though):
-3000k 80 cri + solstrips from cutter: dual spectrum- 2000k and 390nm. The 2000k spectrum is a bit like bridgelux 1750, red peak around 630nm and not really very much else.
- 3000k 90cri + cutter redstrips (5 to 1 ratio of 660 and 730nm, incidentally more or less the same rate as the 2000k spectrum above)
- 3000k 80/90cri in 1 to 1 ratio + the same red strips as above.
All of them will have some infra red strips aswell, all of them one the same driver/dimmer. The all 3000k boards will in be driven in lines: the grow is in an aisle so we have 4 boards wide and each line has its own driver so we can get perfectly even spread, from side to middle to side.
There will also be another test with Cutter Br-solstrips but its more to try how the platform works; its a slightly different setup: 3 channel strips with high power 5050 leds, each 2 foot strips can apparently do over 200w but we will probablye keep them around 100-125 each depending on how they do on their heatsink and how the spread is. This combo will be:
- 3000k 80cri and 90cri, probably on the same channel + uv 390nm. Maybe well add some red strips and infrared on the same drivers as the strips that go with the boards above.
I got a few ideas but would still like to pick some brains out there:
- transition: the plants come from soft vegg and cant take high light levels straight away. Dont ask me why, its how he grows. Maybe even a few days of vegg under the new lights.
Anyone has suggestions on how to do pre and post strip? Low whites and higher output on red strips/2000k strips? With extra far red youd youd expect more stretch but when Rahz did his test a while back he found the opposite: his 90 cri plants went thru the stretch faster and thus stretched less if i remember right.
- UV- low level or just 15 mins at a time?
- infra red: suppose to cause a bit of stretch but also may be nice to have on from the start, simulating high sun summery weather.
Unfortunately i will probably not be able to post this grow as my friend is attention shy. We cant be totally scientific neither as this is comercial and cant risk to much yield to science. Were just really hoping to see something that we like stand out, sortas exploratory. If we find nothing then its 3000k 80cri all the way from now on, maybe some far red flower end of day switching down the line.
Anyone have ideas of what would be interesting to do during the cycle? One given is to increase uv as we get closer to the end, maybe decrease or remove the IR aswell towards the end.
I love the science too and I also was a student, not gradueted yet but a big lover and I have the same opinion about the tests, they are important and thanks to test we can understand and use it for make other test and find new information and deduction.I love what Science can bring to the table but the ultimate test lies in what works for the individual grower for his situational growing style.
So I don't think there will ever be an Ideal Spectrum. We can get close though.
Is that a board or just added strips?Pretty soon playing around with some variable spectrum, this is hard red and wide blue/uv, soft white.
Is that a board or just added strips?
Multichannel as in a Chilled board type?Its a multichannel board, with wide red, wide blue/uv and white. ill give more details soon, meanwhile heres another example white mainly white and a bit of red and no extra blue. around 2700k
Ill have more info soon, i just need to get another 2 boards added to my order and pay for them. I got them custom for these new tests were doing and yeah chilled boards was somewhat of an inspiration.Multichannel as in a Chilled board type?
Both spectrums look good, the reds seem to peak in right place.
Are they top of the range diodes ie Cree, Samsung , nichia?
I've seen some spectrums with a lot more blue than what you've shown
Fluence for instance.
View attachment 4293838
If possible can you add some extra blue 420/450/470nm and green to the mix for 3-4 hours in the middle of the cycle, I believe this will allow the plant to absorb the high level of red light you have betterDynamic spectrums:
These combos will have spectrum enhancement on separate channels so we will be able to control it better. Combos are (not yet set in stone though):
-3000k 80 cri + solstrips from cutter: dual spectrum- 2000k and 390nm. The 2000k spectrum is a bit like bridgelux 1750, red peak around 630nm and not really very much else.
- 3000k 90cri + cutter redstrips (5 to 1 ratio of 660 and 730nm, incidentally more or less the same rate as the 2000k spectrum above)
- 3000k 80/90cri in 1 to 1 ratio + the same red strips as above.
All of them will have some infra red strips aswell, all of them one the same driver/dimmer. The all 3000k boards will in be driven in lines: the grow is in an aisle so we have 4 boards wide and each line has its own driver so we can get perfectly even spread, from side to middle to side.
There will also be another test with Cutter Br-solstrips but its more to try how the platform works; its a slightly different setup: 3 channel strips with high power 5050 leds, each 2 foot strips can apparently do over 200w but we will probablye keep them around 100-125 each depending on how they do on their heatsink and how the spread is. This combo will be:
- 3000k 80cri and 90cri, probably on the same channel + uv 390nm. Maybe well add some red strips and infrared on the same drivers as the strips that go with the boards above.
I got a few ideas but would still like to pick some brains out there:
- transition: the plants come from soft vegg and cant take high light levels straight away. Dont ask me why, its how he grows. Maybe even a few days of vegg under the new lights.
Anyone has suggestions on how to do pre and post strip? Low whites and higher output on red strips/2000k strips? With extra far red youd youd expect more stretch but when Rahz did his test a while back he found the opposite: his 90 cri plants went thru the stretch faster and thus stretched less if i remember right.
- UV- low level or just 15 mins at a time?
- infra red: suppose to cause a bit of stretch but also may be nice to have on from the start, simulating high sun summery weather.
Unfortunately i will probably not be able to post this grow as my friend is attention shy. We cant be totally scientific neither as this is comercial and cant risk to much yield to science. Were just really hoping to see something that we like stand out, sortas exploratory. If we find nothing then its 3000k 80cri all the way from now on, maybe some far red flower end of day switching down the line.
Anyone have ideas of what would be interesting to do during the cycle? One given is to increase uv as we get closer to the end, maybe decrease or remove the IR aswell towards the end.
Cree has released thier new Etone COB range which fills in the 630nm, it would be great if they released these in a midpower chip so they could be easily combined with other chips such as 660nmI came up with this spectrum using 4000 k and a mix of 630 and 660 . Used 4500 k but the spectrum simulator only had 4000 k . All using osrams square whites and oslons reds .
Isn't that the greenhouse spectrum? I think they added more blue to make up for the excessive amount of red in natural sunlight. Their indoor spectrum doesn't look like that.Multichannel as in a Chilled board type?
Both spectrums look good, the reds seem to peak in right place.
Are they top of the range diodes ie Cree, Samsung , nichia?
I've seen some spectrums with a lot more blue than what you've shown
Fluence for instance.
View attachment 4293838
Yea, just using that as an exampleIsn't that the greenhouse spectrum? I think they added more blue to make up for the excessive amount of red in natural sunlight. Their indoor spectrum doesn't look like that.
Hi Rocket, any updates here regarding how you plan to set all this up. I am quite interested in the results if you can push up the blue and green content for a few hours during the cycle.Ill have more info soon, i just need to get another 2 boards added to my order and pay for them. I got them custom for these new tests were doing and yeah chilled boards was somewhat of an inspiration.
Blues: most of these guys are doing high K plus 660nm in a static spectrum. Think they go for higher k due to better efficacy. Im using 3500K white and red and blue channels- the blue is equal parts uva, 450 and 470. Red is going to have to be a surprise for time being...