HPS vs. LED Grow Lights — Which is Better for Growing Weed?

[snakedope]

You still don’t understand basic light concepts and it’s ok, you think that if a certain plant needs a certain wave length and u give It to him just in low or high intensities That there is no difference lol
Please put your led panel at 5 ft from canopy and get back to us with results lol

 

[lusidghost]

I don't really understand basic light concepts. What causes light stress to plants under LEDs? I'm also not even sure of what you and your sock's argument is. Terpenes and THC levels are high. Yields about the same. What exactly is lacking?

 

[snakedope]

Tomorrow is the big reveal?

Yeah I hope they are ready I didn’t visit them for a while as this grow is not in my location and is pretty far away from me at the moment
I kinda know already they will be low shelf grade and it’s ok I’m not biased on nothing and don’t really care I do it for the fun and smoke of it, next round gonna go back to the 3 x 600 or 4 x 400 in that spread with cool hoods (yeah yeah glass and perfect operating temp of bulb ok ok )
But heat management is more important.

lusidghost - I don’t really, my bet it’s just that LED lights are synthetic lights, not working according to nature’s bulb, the sun
So maybe plants just don’t love LEDs..
Maybe they emit something else something extra to the light that causes this
I’m not expert on LED burning issues although I have seen it happen most often with LEDs

To say it’s the intensity of the light ? No.. not logical, people put 150k Lm beasts near their plants and nothingis out of the ordinary
So I won’t bet on too much light being the problem, maybe the source is just toxic
Just my thoughts, don’t take it as fact please

 

[lusidghost]

Please put your led panel at 5 ft from canopy and get back to us with results lol

Why would you do that? My Spectrum King sk600 has a recommendation of 24" to 36". Right now my plants are about a foot beneath it and I had to turn the light way down. That sucks.

 

[lusidghost]

Yeah I hope they are ready I didn’t visit them for a while as this grow is not in my location and is pretty far away from me at the moment
I kinda know already they will be low shelf grade and it’s ok I’m not biased on nothing and don’t really care I do it for the fun and smoke of it, next round gonna go back to the 3 x 600 or 4 x 400 in that spread with cool hoods (yeah yeah glass and perfect operating temp of bulb ok ok )
But heat management is more important.

lusidghost - I don’t really, my bet it’s just that LED lights are synthetic lights, not working according to nature’s bulb, the sun
So maybe plants just don’t love LEDs..
Maybe they emit something else something extra to the light that causes this
I’m not expert on LED burning issues although I have seen it happen most often with LEDs

To say it’s the intensity of the light ? No.. not logical, people put 150k Lm beasts near their plants and nothingis out of the ordinary
So I won’t bet on too much light being the problem, maybe the source is just toxic
Just my thoughts, don’t take it as fact please

I can't tell of you're being facetious due to your sovereign citizen style of posting.

 

[snakedope]

I’m not from the States, although I am very fluent in English, not from UK also, more south then that, way more

at 36 inches you had to turn down your lights ? You have other problems, light intensity is not one of them.

 

[Kassiopeija]

You still don’t understand basic light concepts and it’s ok, you think that if a certain plant needs a certain wave length and u give It to him just in low or high intensities That there is no difference lol
Please put your led panel at 5 ft from canopy and get back to us with results lol

what has my grows hardware to do with the rhetorical questions or the way you amuse me with your mumbo-jumbo trolling?

0.

You are so delusional you cannot even recognize a rhetorical question.
And got it all wrong.
And jump from 1 foot to the other grasping at straws.

So the LED photons aren't seen by the plant but the HIDs are?
And that you say after got all the full SPD presented by @PJ Diaz ?

You are just making these things up.

Most likely one of your friends grows something and you'll visit him on weekend to buy something. Excuses oh it's too dangerous to upload pics. I'd loose 15-20k € if the blue meanies see the above in real.
And it's not really practical to have an indoor grow running far, far away. You don't sound smart nor experienced enough to run fully automated.

 

[lusidghost]

I’m not from the States, although I am very fluent in English, not from UK also, more south then that, way more

at 36 inches you had to turn down your lights ? You have other problems, light intensity is not one of them.

No. My plants are about foot beneath the light. The manufacturer's recommendation is 2 to 3 feet. The light was built to mimic an HPS, where the diodes are all packed into a small square instead of being spread out like modern LED lights. So now the outer perimeter isn't getting enough light, and that's not cool.

 

[lusidghost]

what has my grows hardware to do with the rhetorical questions or the way you amuse me with your mumbo-jumbo trolling?

What are you doing? This is just silly.

 

[Blue brother]

here’s my take,
Larger initial light power from single source penetrates further away from source due to intensity.
Smaller initial light power from multiple sources bypass more obstacles due to greater angles of incidence.

yes a higher intensity source will “push“ through the canopy to reach a desired depth

but also

more lower intensity sources will reach said depth by coming from more angles and bypassing canopy obstructions.

there’ll allways be a limit though. This is down to the grower to find what light at what height works best for a given canopy shape.

my next run will be 3 900ppf ish qbs with 2 900ppf ish hps in between them. Raised all the way up to the top of the tent.
Intensity isn’t the be all and end all IME, i want light coming from lots of angles.

 

[snakedope]

So the LED photons aren't seen by the plant but the HIDs are?
And that you say after got all the full SPD presented by @PJ Diaz ?

You are just making these things up.

You clearly don’t read, and that’s fine
You say the same things, I’m giving u an answer but you still chose to ignore it, claiming PAR is the only thing that matters but you are forgetting that the intensity that PAR is
being pushed is more important.

So yes, again, read my posts, a 150k Lm single light source, although is low on par reading compared to LED, will still make plants see his PAR values better because it has more intensity ! What are you not following here ?
Nobody was talking about the quality of LED PAR compared to HID PAR ! LED rule in that department no argues on that !
But lacked the strength to deliver this perfect PAR to your plants !
Today, not in tomorrow’s fictional world, HID being a single light source push more light ! Rather it be better spectrum or worse, still way better strength then the most powerful led diodes so
Also DJ Piaz just showed that a HPS although giving away some intensity to outta PAR spectrums is still mainly focused on PAR range !!
So simple..

 

[lusidghost]

here’s my take,
Larger initial light power from single source penetrates further away from source due to intensity.
Smaller initial light power from multiple sources bypass more obstacles due to greater angles of incidence.

yes a higher intensity source will “push“ through the canopy to reach a desired depth

but also

more lower intensity sources will reach said depth by coming from more angles and bypassing canopy obstructions.

there’ll allways be a limit though. This is down to the grower to find what light at what height works best for a given canopy shape.

The Spectrum King that I mentioned had a 90 reflector that pushed the recommendation to somewhere around 4 or 5 feet.

 

[snakedope]

here’s my take,
Larger initial light power from single source penetrates further away from source due to intensity.
Smaller initial light power from multiple sources bypass more obstacles due to greater angles of incidence.

yes a higher intensity source will “push“ through the canopy to reach a desired depth

but also

more lower intensity sources will reach said depth by coming from more angles and bypassing canopy obstructions.

there’ll allways be a limit though. This is down to the grower to find what light at what height works best for a given canopy shape.

my next run will be 3 900ppf ish qbs with 2 900ppf ish hps in between them. Raised all the way up to the top of the tent.
Intensity isn’t the be all and end all IME, i want light coming from lots of angles.

You are also right but keep forgetting that it doesn’t matter at which angle you put your bulbs or diodes, if they don’t have strength it won’t reach properly unless positioned in the right height and even then if u read my earlier posts it won’t matter as now the 300 Lm needs to go through canopy which make it only worse for penetration.

 

[Billy the Mountain]

You are also right but keep forgetting that it doesn’t matter at which angle you put your bulbs or diodes, if they don’t have strength it won’t reach properly unless positioned in the right height and even then if u read my earlier posts it won’t matter as now the 300 Lm needs to go through canopy which make it only worse for penetration.

You're simply clueless

 

[snakedope]

Most likely one of your friends grows something and you'll visit him on weekend to buy something. Excuses oh it's too dangerous to upload pics. I'd loose 15-20k € if the blue meanies see the above in real.
And it's not really practical to have an indoor grow running far, far away. You don't sound smart nor experienced enough to run fully automated.

Lucky I have good friends, but if your judging who’s to know the truth, you don’t even know me but speculation is already brewing in your head lol

You're simply clueless

View attachment 5143707

Wow, full of knowledge post
Respect homie.

 

[lusidghost]

This thread is clown shoes.

 

[Blue brother]

You are also right but keep forgetting that it doesn’t matter at which angle you put your bulbs or diodes, if they don’t have strength it won’t reach properly unless positioned in the right height and even then if u read my earlier posts it won’t matter as now the 300 Lm needs to go through canopy which make it only worse for penetration.

I feel like you’re putting across a very black and white argument when really it’s not that simple.
I can understand because ur backed into a corner and you’re trying to get ur point across, trust me, I’m in the corner a lot, I feel you. You make some valid points.

However

attenuation is loss, whether it be due to scattering of photons following the inverse square law or due to reflections from obstructions.

a higher wattage source (yes wattage, not lm par ppf) of light power hitting an obstruction will “push through” an obstruction (leaves) and retain a higher value when compared to a lower wattage source.

buuuut when we spread out multiple lower wattage sources that can travel past said obstructionthen we loose less power through obstruction and reach said point with the same value.

Like I said earlier it comes down to the grower making the right choice for their space and canopy shape and/or density.

I’m not saying one source is better than another, that’s for each individual to decide which is better for them. I use both And for good reason.

no one’s saying a luxx is gonna grow a dense tall bush as well as a 1000w de with a focused reflector, or that a 1000w is gonna grow a flat canopy full of 40cm tops corner to corner uniformly. There’s different horses for different courses. The importance is knowing how the light from differwnt fixtures Will behave in YOUR individual set up

 

[snakedope]

Finally, some words of wisdom and logic
Thank you brother, I agree on that, you can adjust always.

“buuuut when we spread out multiple lower wattage sources that can travel past said obstructionthen we loose less power through obstruction and reach said point with the same value.”

Why do you think they travel past the obstruction and lose less power ? You say one thing then the opposite, if a high intensity light source like u said is able to penetrate more effectively without losing too much power (again your words, which I totally agree)
What makes you think that putting a less intensity light source, no matter at what location will penetrate deeper without losing much strength ?
I can understand this if I put like I said 4 x 400 then it will work because a 400 hid is still super strong at the right height and even above that.

 

[Blue brother]

Finally, some words of wisdom and logic
Thank you brother, I agree on that, you can adjust always.

“buuuut when we spread out multiple lower wattage sources that can travel past said obstructionthen we loose less power through obstruction and reach said point with the same value.”

Why do you think they travel past the obstruction and lose less power ? You say one thing then the opposite, if a high intensity light source like u said is able to penetrate more effectively without losing too much power (again your words, which I totally agree)
What makes you think that putting a less intensity light source, no matter at what location will penetrate deeper without losing much strength ?
I can understand this if I put like I said 4 x 400 then it will work because a 400 hid is still super strong at the right height and even above that.

Because the multiple source fixture sends light away from each diode, meaning there are diodes that send light on a different angle,EDIT!!!(the diodes don’t send light on a different angle, the light is recieved by the plant at a different angle due to the spacing of sources) which is not impeded by obstruction.

The leaves directly under the hps obstruct the light travelling to said point, however the light from another angle might not have to pass through those leaves, or it might, in which case there’s a thousand other diodes sending light from another angle that will reach said point unobstructed.

 

[snakedope]

I get that what you are saying and you are indeed very right,
All I’m saying Is the concept sound good on paper, but in reality even with 300 opposing angles which some of them might or might not hit the canopy straight from above or the sides of the buds is not adding much credit to their initial output, which is low to begin with.
So yeah your concept is spot on but lacks the proper 300 opposing high intensity lights to go along with it. they are still too low output to use these concepts and light angles in a proper way, unless people want their plants to hug theIt fixtures sort of speak

LEDs, because of this, have a hard time when being confronted with long distances and canopy depth
Still not a very good solution although in the future when they stick much higher voltage diodes in their fixtures I think we will see massive improvements.