LED Without LEDs -My First T5 Grow

I defer to Pr0f, but I am more inclined towards more green than he, BUT, the Fiji may provide more than enough Green. In the end it depends on the rest of your bulbs. On second look at the graph, I agree with Pr0f- too much yellow/orange with the Giesmann.

I still haven't been able to wrap my mind around how disparate bulbs will commingle when < 4" above the canopy, though. hth

Originally Posted by PetFlora

I still haven't been able to wrap my mind around how disparate bulbs will commingle when < 4" above the canopy, though. hth

Light travels in ALL directions....
Unless your doing a SOG and the plants are perfectly FLAT... you shouldn't have a problem... the sheer fact you can see all the bulbs 4" from your face means light is reaching your eyes telling you they exist....

Originally Posted by Psytranceorgy

Hrmmm

Well, I was thinking that I would have plenty of blue light with the 2 454s and the 2 super actinics (with supplemental blue spillover coming from the 2 fiji purples and 2 ???... where ??? could be the aquaflora, or some other, better bulb for the purpose).

But I am still thinking that the preferred ??? bulb is something with decent red spillover during flowering, as well as the blue since these bulbs will remain in the Bad Boy during both vegetative and flowering growth. I am also thinking that the preferred bulb should have a green peak. I see the ??? bulb filling sort of the same role as the fiji purples (decent blue/red/green) for all phases

The Giesemann midday isn't bad either and shares similar peaks... just a little less specific

Giesemann midday:

midday.jpg


Giesemann aquaflora:

aquaflora.jpg

The more light peaks the bulb produces the less of that light it produces.......
for example you must ADD the total light distribution together to get the total output... if you disperse that light over the entire spectrum you diminish the intensity of the individual peaks....therefore the light would not be as energetic for that spectrum and produce fewer photons....
More of one color is always going to be better than less of all colors...
While thinking you would have enough blue is rather a misnomer.. each bulb is focused on a specific spectra... you have to add the spectras together to get a more complete PAR footprint...
Adding light between 500 and 630nm is wasting photons.... and $$$
you need green "some" yes thats true.. however the ??? bulb is a "supplemental" bulb like a vitamin if you will while red and green are food.... plants will grow with ONLY blue... and grow better with R/B and produce more resin with actinic light... so blue and red are primaries... you want only 10% of your light for supplementation out of that spectra... i explained under Actinics Explained a few posts back...
PROFspect.jpg

Originally Posted by pr0fesseur

The more light peaks the bulb produces the less of that light it produces.......
for example you must ADD the total light distribution together to get the total output... if you disperse that light over the entire spectrum you diminish the intensity of the individual peaks....therefore the light would not be as energetic for that spectrum and produce fewer photons....
More of one color is always going to be better than less of all colors...
While thinking you would have enough blue is rather a misnomer.. each bulb is focused on a specific spectra... you have to add the spectras together to get a more complete PAR footprint...
Adding light between 500 and 630nm is wasting photons.... and $$$
you need green "some" yes thats true.. however the ??? bulb is a "supplemental" bulb like a vitamin if you will while red and green are food.... plants will grow with ONLY blue... and grow better with R/B and produce more resin with actinic light... so blue and red are primaries... you want only 10% of your light for supplementation out of that spectra... i explained under Actinics Explained a few posts back...
PROFspect.jpg

How did you map all of that plus the sum spectra? I think it would be neat if we could all provide graphs like yours, Pr0fesseur.

Originally Posted by MurshDawg

How did you map all of that plus the sum spectra? I think it would be neat if we could all provide graphs like yours, Pr0fesseur.

These graphs were posted already in this forum HERE ive even posted them in my journal.. please check it out! they do not belong to me and were provided by BrainAlive
Brainalive if you read this Thanks again for these great graphs to help the cause!

This is why a journal would be a good idea. The introduction is editable over time. The various graphs could be laid out there with a brief explanation on the whys and wherefores, eliminating scrolling through 53 pages and counting. hth

Amazing graphs Brainalive! Thank you! And thank you pr0f for the heads up and replies, and for all of your researching efforts, and posts here. I'm sucked in! Can't wait to get my own T5 grow going =D. Looks like that fiji purple is every bit as precious as the red suns for flowering... and the only bulb that really hits the 660 range... I'm certain that I will make at least one of the ??? bulbs another fiji purple. Probably even drop a red sun for a fiji purple so that I would have 3 of each during flower and the ??? bulbs can still be something else...

It would really be awesome for the cause to organize the bulbs/graphs, and if the freaking spectra could be provided better (or even at all with some) from the manufacturers... I know I'm not the only one that is noticing all the differences in scale on these spectrum graphs on both the x-axis and the y-axis, as well as the coloring etc... ***sigh*** Worth sorting through it all though IMO! Brainalive... where are you... lol :P

Psy: Yes those X/Y axis are not consistent, especially the vertical (x?) plus many are small and do not have a large enough 'enlarge' size, some none at all.