Anyone else waiting for Samsung strips?
- Thread starter Exdj99
- Start date
Randomblame
Well-Known Member
As far as I know, currently only from cuter.com.au.
This is his thread about his Solskin boards and strips. Links are in the thread.
https://www.rollitup.org/t/sol-skin-let-the-journey-begin.943891/page-15#post-14251322
This is his thread about his Solskin boards and strips. Links are in the thread.
https://www.rollitup.org/t/sol-skin-let-the-journey-begin.943891/page-15#post-14251322
wietefras
Well-Known Member
I'm interested if you have come across any actual proof of that? From hat I have seen it's been both up and down. On average no significant difference (apart from plant height and perhaps duration of the grow)
Randomblame
Well-Known Member
I mean more choice of available spectren is an advantage, not that CRI90 has an advantage over CRI80. This mostly depends on the strain used. I see no real advantage between different CRI's beside it looks more naturally....
Digikey has Bridgelux EB Gen-2 in stock.
https://www.digikey.ca/product-detail/en/bridgelux/BXEB-L1120Z-35E4000-C-B3/976-1732-ND/7907661
https://www.digikey.ca/products/en/optoelectronics/led-lighting-cobs-engines-modules/111?k=bridgelux eb
https://www.digikey.com/product-detail/en/bridgelux/BXEB-L1120Z-35E4000-C-B3/976-1732-ND/7907661
https://www.digikey.com/products/en/optoelectronics/led-lighting-cobs-engines-modules/111?k=&pkeyword=&s=60762&FV=ffe0006f,fffc03d0&quantity=0&ColumnSort=0&page=1&pageSize=25
welight
Well-Known Member
No doubt Nichia has the best phosphor on the planet, the trick is convincing those that dont know the difference of the benefits of great phosphor against the relentless 'I must have highest efficacy', AKA a maturing market. What we need I guess is a few grows with Nichia strips that highlight that performance, once you get past efficacy pissing contests all your left with is spectrums that do or dont amaze you and Nichia pumps that rarified air. LM561C can be got for 5c and 301b not much more, optisolis is a 0.20 chip so difficult to get down to a Sammy strip price but the 5k optisolis is truly a beautiful spectrum for growing
welight
Well-Known Member
our strips are 560mm or 2ft, what data do you want and on which colours, below is an order going out with Nichia 2000k, 2700K, 2700k 90 CRI, 4000k and 5000k Optisolis
Cheers
Mark
wietefras
Well-Known Member
Problem is that there have been plenty of tests done and spectrum doesn't actually matter that much. In scientific tests the difference between even 2700K and 4000K was only a few percent.
I understand "spectrum pissing contests" are a marketing gold mine for you since you can claim whatever you want and some people will buy into it (and pay top dollar for the "perfect spectrum"), but we all know those claims are really just marketing.
OneHitDone
Well-Known Member
Bring your "spectrum doesn't actually matter that much" BS over to my lettuce thread and let's see what you can do
Randomblame
Well-Known Member
Yeah! If you could get them for the same price like lets say F-strips, I would certainly use them, even if the benefits of an "optimized spectrum" are only marginal,.. if any.
But I am not prepared to pay so much more when the benefit is only a few percent.
As long as they cost twice as much they are simply out of my range.
But I am not prepared to pay so much more when the benefit is only a few percent.
As long as they cost twice as much they are simply out of my range.
Randomblame
Well-Known Member
Bring your "spectrum doesn't actually matter that much" BS over to my lettuce thread and let's see what you can do
Complete different species!
We talk about c3 plants. Not from plants growing on the ground, that for example do not need much green light. Try a red/blue/yellow tuned spectrum for cannabis and see what happens.
OneHitDone
Well-Known Member
Lettuce is kinda a C3 plant bro
Randomblame
Well-Known Member
But lettuce grows litteraily on the ground with no intra canopy where green light is used for example. Different species have different response to light. A good spectrum for lettuce it not neccessarily good for other species too.Lettuce is kinda a C3 plant bro
Cactii for example need a summer and a winter spectrum and don't like any changes.
wietefras
Well-Known Member
@OneHitDone
If you are talking about color development on lettuce then yes, you might need spectrum changes. Some lettuce strains even need UV for instance. Your problem could also be too much light or even issues having nothing to do with the (color of the) light itself. Who knows what exactly is the issue? That's basically the whole problem with hobby growers doing "scientific" research.
Anyway, this is a cannabis forum with an emphasis on flowering cannabis and not for vegging lettuce. Sure, we tend to use a spectrum with slightly more blue during veg and warm white during flowering for obvious reasons.
Apart from that, if there was ever any real evidence that spectrum matters and then which one actually does perform better, then I'd be all over that. However, all we have so far is anecdotal "evidence" which seems to either show no (significant) benefit to a certain spectrum. Or a difference that's sometimes in favor of one spectrum and in other cases in favor of the other (ie again no significant benefit to either)
Anywhere between 2700K and 3500K and 80 CRI or 90 CRI all seem to work pretty similar. Perhaps 2700K 90 CRI would be a more efficient spectrum for flowering, but to produce that spectrum you lose light intensity and losing light intensity has an almost linear effect on yields too. Balancing each other out. Just like 3500K 80 CRI might be a slightly less efficient spectrum for the plants, but it's more efficient to produce from the COBs. Again balancing each other out.
If you are talking about color development on lettuce then yes, you might need spectrum changes. Some lettuce strains even need UV for instance. Your problem could also be too much light or even issues having nothing to do with the (color of the) light itself. Who knows what exactly is the issue? That's basically the whole problem with hobby growers doing "scientific" research.
Anyway, this is a cannabis forum with an emphasis on flowering cannabis and not for vegging lettuce. Sure, we tend to use a spectrum with slightly more blue during veg and warm white during flowering for obvious reasons.
Apart from that, if there was ever any real evidence that spectrum matters and then which one actually does perform better, then I'd be all over that. However, all we have so far is anecdotal "evidence" which seems to either show no (significant) benefit to a certain spectrum. Or a difference that's sometimes in favor of one spectrum and in other cases in favor of the other (ie again no significant benefit to either)
Anywhere between 2700K and 3500K and 80 CRI or 90 CRI all seem to work pretty similar. Perhaps 2700K 90 CRI would be a more efficient spectrum for flowering, but to produce that spectrum you lose light intensity and losing light intensity has an almost linear effect on yields too. Balancing each other out. Just like 3500K 80 CRI might be a slightly less efficient spectrum for the plants, but it's more efficient to produce from the COBs. Again balancing each other out.
welight
Well-Known Member
I dont disagree with what your saying, but I would say that there are no scientific tests on optisolis for growing cause the product has only recently come out, just because it is doest mean it should be. The search for improved lights is a relentless march and I would never take the view that 'scientific tests' are the defining perspective, historical perhaps. As for marketing spin well we who sell must find a path.
Cheers
Mark
Humple
Well-Known Member
Would you happen to have links to any grow journals under these Nichias?
Edit: Pics from any source would be helpful.
Instant Pot
Member
BTW Digikey has ALL SPECTRUMS of 2' and 1' H-inFlux in-stock and shipping. If you're buying 8 for a 4x4 build, you might as well got the discount buying 10 for only @ $30 more, and have a couple in reserve...or for a veg cab.
SMT69
Well-Known Member
I want to get the new hi flux strips.
I originally have a design all made up with the F strips using the build calc on ledgardner site.
how do i figure how many strips and which driver with these ?
the calc tool for the F strips is awesome and you can design your setup using it. Is it possible we can do these hi flux on another calculator somewhere else?
thx
I originally have a design all made up with the F strips using the build calc on ledgardner site.
how do i figure how many strips and which driver with these ?
the calc tool for the F strips is awesome and you can design your setup using it. Is it possible we can do these hi flux on another calculator somewhere else?
thx
wietefras
Well-Known Member
Can't you use the Samsung calculator? https://www.samsung.com/led/support/tools/engine-calculator/