Advanced Lighting Spectrums for T5 Floro and LED

**PetFlora** · 07-16-2012, 01:18 PM

Originally Posted by Fonzarelli

I said this in the opening post already. I even used your word "catalyst."

As long as your spectrum is balanced out with the proper amount of blue light, 660nm will AWAYS absorb more efficiently than 630nm. It's a fact. 630nm light will help to balance out the spectrum if there is an over-abundance of 660nm. This is where you will see "bleaching" is when the spectrum is not balanced out properly.

This statement is completely false. Bleaching? This is what happens when your spectrum is improperly balanced with the wrong wavelengths. How do you know this will happen with 10w LEDs specifically? Have you done a DIY already? I have seen the best growth so far with 15w LEDs and higher. People are even using 80w and higher dense matrix LEDs and having outstanding growth with them. They are growing trees with them because they can penetrate through the canopy.

You "think" it's the opposite, but you are wrong. Think about how all terrestrial plants absorb the blue and red wavelengths more efficiently than the green and yellow wavelengths. It's because there is less of the red and blue in the Sun's spectrum, that's why plants absorb it more efficiently. Indica's grow higher above the equator so there will be an abundance of BLUE light. This is why they absorb RED light more efficiently. Opposite for Sativas. I've done the testing already so please try it first before saying how it is. My Cali-O Sativa cannot get enough blue light, but when there is more red, the leaves get mottled and growth stops. This has been backed up by others.

I've seen this thread you are talking about. They are using 80w high powered dense matrix LED lights and higher. The reason they are having such good results with them is because THEY ARE 80w from a single point light source. The reason the neutral and warm white work is because of the spectrum. Have you even seen the spectral output of them? It's one giant spike at 460nm or 440nm(depending on type) and then a huge curve from 550nm up to 740nm. They still waste photons however, due to the abundance of green and yellow light in the spectrum, but they do cover the whole spectrum unlike HPS. You don't need more green and yellow in your spectrum, you need more red and deep red. Yes, the warm whites and neutrals work on their own, but so does a HPS and MH.

I think you need to read more closely to fully understand and do more research. I've already seen proof that backs up what I said so it's no longer a theory. Any time you fine tune your spectrum for your plants, you will achieve maximum growth potential.

As anyone reading this will see, we disagree on SOME things. First you said specifically 550 was the catalyst, not 500-600 as I have consistently stated. And it's 630 that 'aways' absorbs more than 660s, but these are nit pics. 630 without 660 will do a better job than the opposite, though both have a place at the table. That is extremist thinking, whereas all spectrums play a role.

You also told me to increase my w/d cycles in HPA, way beyond what worked, but I tried them for several weeks, before dropping way back to where I am now, and seeing better results than I did without experimenting. Meaning you were not 100% right, but neither were you 100% wrong.

You're learning a lot (and have learned a lot from me, as I from others) but making absolute statements here boxes you into a corner with no way out. And I know that is not your intention. No one I am aware of has taken the bull by the horns and tried as many T5 variables as you have. Kudos! And who gave you the idea for the title of this thread? ME

**Fonzarelli** · 07-16-2012, 02:39 PM