Matching Drivers and COBs

littlejacob

littlejacob

Well-Known Member
Bonjour
No...no problems!
I'm really happy that you done this to help me (I learn only 4 years at school)
I have a lack of vocabulary...and most of the time I am too lazy to translate from goggle...and I post from my phone cause my laptop passed away...R.I.P... (I am looking for a new one...but I use it only to surf on the net, watch US series in streaming and play...so I need a simple one with a good screen)
I love your language because you can go almost everywhere on earth and find someone who speak English...
I believe mandarin (chinese language) is the language speak by the largest amount of people on earth...but English is the universal language and it help me in many situations in my life...relationships, work, girls (there's some from all over the world where I live), travel, family(I have some from England and some in California! Cool!)
So I am fully open to every suggestions and English lesson...I love to learn new things! I fell like a sponge!
Feel free to correct me...anyone...I will never take offense from constructive comments!
But with both of your parents teacher...I bet it was more a reflex than criticism...was it hard to live be in dad or mom classroom...lol
Thanks Pr @ttystikk
Have a great day ★
 
ttystikk

ttystikk

Well-Known Member
littlejacob said:
Bonjour
No...no problems!
I'm really happy that you done this to help me (I learn only 4 years at school)
I have a lack of vocabulary...and most of the time I am too lazy to translate from goggle...and I post from my phone cause my laptop passed away...R.I.P... (I am looking for a new one...but I use it only to surf on the net, watch US series in streaming and play...so I need a simple one with a good screen)
I love your language because you can go almost everywhere on earth and find someone who speak English...
I believe mandarin (chinese language) is the language speak by the largest amount of people on earth...but English is the universal language and it help me in many situations in my life...relationships, work, girls (there's some from all over the world where I live), travel, family(I have some from England and some in California! Cool!)
So I am fully open to every suggestions and English lesson...I love to learn new things! I fell like a sponge!
Feel free to correct me...anyone...I will never take offense from constructive comments!
But with both of your parents teacher...I bet it was more a reflex than criticism...was it hard to live be in dad or mom classroom...lol
Thanks Pr @ttystikk
Have a great day ★
Click to expand...
It wasn't hard, I got used to it. I never realized that the corrections I was getting added up to a better command of the language than most until I reached middle school... where it was discovered that I spoke, read and wrote at the college level. At that age, sticking out from the group is painful, no matter what the reason!
 
littlejacob

littlejacob

Well-Known Member
But now we are all members of the weeders family!!!!!!
Proud to grow hemp!!!!
Sad it is not allowed in my country....one day....anyway we do thing like in US but fews years later so I am confident (regarding the money involved...)
CU riu friends!
 
brettsog

brettsog

Well-Known Member
Just want to add that cleverer isn't a proper English word, although that said anyone who speaks English fluently would understand it. The proper terminology would be to say more intelligent e.g. you became more intelligent.
 
littlejacob

littlejacob

Well-Known Member
Bonjour
Now I know a new word...fluently... (good enough...!??? Is that what it mean?)
Should I say smarter?
e.g????
English lesson off...lol
Thanks my friends!
And brettsog I want to ask you since a long time...why do you have a picture of my girl friend??? She make a damn good avatar but she looks fat on this one...lol...
CU
 
Rahz

Rahz

Well-Known Member
chinuh man said:
to elaborate... if the light system works and the PPFD is in between 759-900 across the entire canopy... then the rest of the numbers become insignificant?
Click to expand...
Yes, PPFD is the final product as far as how much light is being emitted over a particular space. We could get technical with spectrum characteristics but as far the rest of the numbers yes, they're all used to determine PPFD.
 
ttystikk

ttystikk

Well-Known Member
Rahz said:
Yes, PPFD is the final product as far as how much light is being emitted over a particular space. We could get technical with spectrum characteristics but as far the rest of the numbers yes, they're all used to determine PPFD.
Click to expand...
Yet, not all PPfD is the same; you could have equivalent measurements that are still comprised of very different spectral components.
 
Rahz

Rahz

Well-Known Member
Absolutely. From one white COB to another I don't think there's a lot of difference though. Perhaps decor would be an improvement but with higher wattage. Bridgelux, Cree, Phillips, etc. all similar white spectrum. As far as blurple, I'm still not sure it's the narrow banded spectrum or the horrible efficiency most of them have that killed it. Perhaps the lack of orange or wide spectrum, or perhaps just low par, I'm not sure. I haven't grown with blurple and haven't really tried to dig into grow logs and get yield to compare with lamp's actual par. So I'm certainly not expert level on the subject.

All white cobs are lacking on the near violet and deep blue. Whether that would enhance yield with same PPFD or not I don't know. More red (3000K) seems good but a lot of people are opting for 4000K these days.
 
Rahz

Rahz

Well-Known Member
Maybe, but I think the matter will need some laboratory results to clear things up, or at least a dedicated grower willing to run stringent tests under two different test rigs. Growing with 3000K both Cree and Bridgelux I've observed excellent veg times and have never felt my bushes were not bushy enough. As far as flowering, the conventional wisdom seems to be 3000K better yield, 4000K better resin production... but is that true? No resin issues under my 3000K lamp, but then again I haven't flowered under straight 4000K, so what do I know? The lamps I sell (should be available next week) will all be 3500K Vero and 3000K CXB.
 
ttystikk

ttystikk

Well-Known Member
Rahz said:
Maybe, but I think the matter will need some laboratory results to clear things up, or at least a dedicated grower willing to run stringent tests under two different test rigs. Growing with 3000K both Cree and Bridgelux I've observed excellent veg times and have never felt my bushes were not bushy enough. As far as flowering, the conventional wisdom seems to be 3000K better yield, 4000K better resin production... but is that true? No resin issues under my 3000K lamp, but then again I haven't flowered under straight 4000K, so what do I know? The lamps I sell (should be available next week) will all be 3500K Vero and 3000K CXB.
Click to expand...
I'm looking forward to perusing your lineup with great interest!
 
ttystikk

ttystikk

Well-Known Member
Rahz said:
Maybe, but I think the matter will need some laboratory results to clear things up, or at least a dedicated grower willing to run stringent tests under two different test rigs. Growing with 3000K both Cree and Bridgelux I've observed excellent veg times and have never felt my bushes were not bushy enough. As far as flowering, the conventional wisdom seems to be 3000K better yield, 4000K better resin production... but is that true? No resin issues under my 3000K lamp, but then again I haven't flowered under straight 4000K, so what do I know? The lamps I sell (should be available next week) will all be 3500K Vero and 3000K CXB.
Click to expand...
I think lab style head to head testing is an excellent idea. What spectrum is best?

For that matter, what if the specific phosphors and dopants could be tuned to give better response at both low and high spectra? The resultant average color temperature might not change much, but it could be a lot better than the mixes that are currently available. The trade-off would be cost, no doubt.
 
C

chinuh man

Member
Thanks @Rahz for answering my question. I recently just moved to CO with my gf and we are trying "live resin" for the first time... I'm so high lol. Now I think I'll go decipher some of Supras ramblings. He's crazyyy I swear!! Please teach me how to hunt... don't just give me food.
 
Rahz

Rahz

Well-Known Member
Those look nice, but there's more orange/green and far red so there's no obvious answer as to whether it would be better. Low CRI is hitting the peaks pretty good already, much better than the Sun actually. The ideal spectrum and whether/how much it should deviate from the Mcree curve is debatable.

Blurple is a strong deviation. Sunlight is also a strong deviation in the opposite direction. Perhaps lower CRI is where it's at? No obvious answers.
 
You must log in or register to reply here.
Top