The ULTIMATE flowering spectrum hps + led

Thought I would post this here for all you led guys to see. Just set up this spectrum today. It will be what I use from now on for flowering.

1000w HPS + 300w LED 410/440/460/630/660 NM,
View attachment 2589635

HPS is good alone, but in combination with LED it goes from good to GOOOOOOOOOOOOD!

Just curious, how much would (did) the LED portion of this run, initial cost wise?

Nice work sir.
can we see a photo of the combo?

somebuddy told me that never try before , I wish I have my HPs but i sold them ...

Interesting. I would also like to see an image of the panel and how it's laid out.

I would lean towards a less-powerful HID and more powerful LEDs in order to reduce that zenith in the yellow area. But to each their own, interested to see what this spectrum can do.

To all of the above:

It costs way more than any sane person would want to spend. About $1100 for the LED portion, but it will last a long time supposedly.

I just threw a new 12/12 plant under it that I've grown before under HPS alone and under MH + LED to compare.

It's not a panel, they are Kessil single spot LEDs.

mamakush said:

Interesting. I would also like to see an image of the panel and how it's laid out.

I would lean towards a less-powerful HID and more powerful LEDs in order to reduce that zenith in the yellow area. But to each their own, interested to see what this spectrum can do.

Click to expand...

I was thinking along these same lines. I first tried a 400w HPS, but the blue in the LED deep purple was over shadowing the HPS and other colors. The reason I like the 1000w so much is that the spectrum corrolates almost perfectly with the photosynthesis absorption graph on the yellow/orange/red side. I agree that I don't think yellow is good, but the Sun is mainly yellow and it is grows well, so my guess is that yellow isn't so bad if properly mixed with red/deep red. Just a thought though. Anyway, if a HPS grows nice big juicy hard compact buds then this should make it even more so.

I'm not very familiar with Kessil. Are you using 6 different Kessil units, or 3 with 2 wavelengths each (or 2 with 3 wavelengths each, for that matter)? How tightly grouped do you have them to your HID? In my head I'm picturing a large 1000w HID panel with Kessils around the perimeter.

Agreed that the sun is the ultimate plant grow light. And while it is true that plants have evolved to photosynthesize using the light provided by the sun, there are also plethora studies showing that plants use the different wavelengths in varying amounts (enter absorption graph). SO, (in my opinion) yes, yellow is important, and yes, it is best to have a mix of the spectra that feed into photosynthesis, but I personally feel that HID produces excessive amounts of yellow/orange, and if I'm paying the energy bill to run these lights I don't want them putting out unnecessary amounts of...well... anything.

mamakush said:

I'm not very familiar with Kessil. Are you using 6 different Kessil units, or 3 with 2 wavelengths each (or 2 with 3 wavelengths each, for that matter)? How tightly grouped do you have them to your HID? In my head I'm picturing a large 1000w HID panel with Kessils around the perimeter.

Click to expand...

Yes, 6 different Kessil units. 4 of the h150 RED narrow beam, and 2 of the h350 deep purple.
For the 1000w HPS I'm using a Super Sun II reflector I think. It's the smaller hood about 18" by 12" roughly? The room is about 5ft x 5ft and the LEDs are evenly placed within that 5 x 5 area hanging on chains from the ceiling. See below.

mamakush said:

Agreed that the sun is the ultimate plant grow light. And while it is true that plants have evolved to photosynthesize using the light provided by the sun, there are also plethora studies showing that plants use the different wavelengths in varying amounts (enter absorption graph). SO, (in my opinion) yes, yellow is important, and yes, it is best to have a mix of the spectra that feed into photosynthesis, but I personally feel that HID produces excessive amounts of yellow/orange, and if I'm paying the energy bill to run these lights I don't want them putting out unnecessary amounts of...well... anything.

Click to expand...

My method is: Instead of taking the YELLOW away that you say is "unnecessary amounts energy in your electric bill," just add even MORE red/deep red/blue energy to compensate for the excessive yellow in the HPS therefore making the yellow that is in the HPS now 100% usable. It's all about the proportions and overall light balance. This way you get 100% use out of all the energy put into your grow.

Although the PAR graph peaks in the red area, there is still quite a bit of yellow and orange in there and it's known that yellow and orange both help plants absorb the red spectrum easier without the over-saturation problem. Yes, it's true that HPS alone has way more yellow necessary, but when combined with higher amounts of RED energy it ends up being near perfect absorption for photosynthesis. It's like the SUN without the unnecessary excess of GREEN and YELLOW and BLUE energy.




Here's a photo of how the lights are setup. The only gripes I have with this setup are 1. COST and 2. ALL THE FUCKING WIRES HANGING EVERYWHERE

As you can see I mounted all the h150 drivers to a board and screwed it to the ceiling. I don't have the other Deep Purple in there right now because I'm using it over another plant right now, but the Sour Deez is getting enough BLUE being directly under the other Deep Purple LED and enough RED from all the other h150.

Here's the difference between this custom spectrum vs. HPS alone. The difference is HUGE! HPS alone is just so weak looking.
HPS + LED notice the HOT PINK/PURPLE look the light has compared to HPS. This is the essential color for photosynthesis,

Now compared to HPS alone you can see how it looks much more yellow-green without all the RED in there,

The 569nm peak is the only one that is "out of proportion" slightly. It's such a narrow band of energy however that it isn't going to be the dominant wavelength in there. If I was using a cosine collector on my equipment it would show that there is more RED energy in this setup. A cosine collector gathers more light from 180 degree angel instead of a narrow slit that is on the spectrometer. Either way, only time and BIG BUDS will show if this setup works or not. I'm not going to say that this expensive method for sure works better than HPS alone until I SEE the results for myself. But, unless science itself is totally bunk I should be able to easily predict extremely better yields than HPS alone.

This light source looks ENTIRELY different than any light or light panel on the market today so that is why I am so excited to see what it can do. Everyone is trying to match PAR and or the peak absorptions points of photosynthesis. What I believe this grow will prove is that it is more beneficial to match PAR instead of just a few peaks like most LED panels do. Yellow and Orange have the highest quantum absorption(not sure if I worded this right0 out of the entire light spectrum. Which means that yellow and orange wavelengths carry the most energy that the plants can absorb. I believe this is why people say HPS grows bigger, tighter nugs. When the LED vs. HPS argument comes up, LED never wins the density battle and I believe it's because they lack the yellow to orange spectrum in higher quantities.

Anyway, here's a photo of a Sour Deez I just put in there yesterday. In 2 months time I will be able to safely say this system is working extremely better, a little better, or the same as HPS alone.


Once again HPS alone to show the color difference...........yuk!

This thread has moved to here:

https://www.rollitup.org/led-other-lighting/638146-ultimate-flowering-spectrum.html

Please continue any further discussion there. Sorry for the inconvenience!