CMH vs LED vs HPS

[CannaT]

I'll have to respectfully disagree with that @CannaT

I ran cmh mother during winter/spring and led clones of her during a hot uk summer with temps 30C.

Unfortunately they were not comparable. I got way more bud with the leds but what i gained in yield i lost in potency so ended up smoking more.

Even with smoking more of the led buds to try to compensate there wasnt the satisfaction there was with the cmh bud.

You get the same thing with air temp of 24 + hids and good ventilation leaf temp is around 28-29.
Also pot is always grey,dark...it also acumulate some heat with RHeat...and its not 24-more like 27-26.
If your air temp is 28 leaf and soil will constantly be at that temp.
As you can see two different things again same leaf temp.

1+3=4 2+2=4 isnt it ?


And if you get that you have the same ratio of evaporation water from plant the same speed of metabolism just with way more better light quality.

 

[snakedope]

The energy density of LED is higher than HID.

Yes when comparing them on paper, in reality we don't have a 1w hps, so can't compare them in real life, you can only add up or total arrays, but we talked about this before, you can't add intensity when using same source intensity so..........

Both tend to be used in multiples professionally. Which is where we should really look, to filter out the opinion of 1 light growers, who are likely less experienced.

LED can illuminate a plant higher than sodium. The sodium has a huge peak around 600nm with a lack of support from other wavelengths. This causes bleaching that the LED doesn't.

Bleaching ? I never saw bleaching in my hid grows bud, sorry.
Who cares about what and which wavelength, you smoked hps bud for years with a big smile on your face right ?

The idea you need all your light in one place, should be easy to look at when expanding from one light to two. Do you see a drop when putting a second 1 light grow beside the first one light grow. Do you regularly see grows with room dividers between lights, to ensure each zone gets just one light. Does practice in any way support your theory.

You just like to twist things around to suit your nerdy explanation needs which no one cares about, I like your posts every now and then but you need to wake up bro and get back to reality, your nose has been inside scientific papers for too long
I never meant to isolate a light from other lights, or not adding lights beside your main light, you are awkward in your understanding things...
I said that you need a light that give the power of the sun or close to it, put as many as you wish, well, you have, LEDs... And look how that turned out
So next experiment should be putting diodes that have (won't happen) sun power, how much is that you say with your apps and gadgets ? 100k ? Thought so...
Does a diode makes 100K ? Does it make even 50K ? No.
Led mfgs think everyone is dumb when they total a 1x1m led array and tell you it's a 100k array, you know what... It is a 100k array, ON PAPER.

 

[snakedope]

If you are new to lighting concepts please understand, you cannot add rate per sec by adding same rate per sec source ! The rate per sec will stay the same.
I don't care if Ca+ or Crooked8 or Cerathule thinks otherwise, it can't be done, only on paper.
All LEDs do is just spread light better, but for that task they sacrifice the source strength.

 

[snakedope]

To further explain reality concepts to science people, with LEDs all you did was putting 200 lm in each spot of the space, but that's it, you still have just that, 200 lm per sec everywhere
Very good, you can grow all kinds of things with this amazing low light per sec arrays
Cfl has been doing it for years, but with more success in the oils department, as they are usually more then 1500lm at source, they can squeeze a bit more from resin plants

@Vegg69guerilla got it right with his hps 400, though it might not veg the same like a led array, it's the source strength that counts
A plant doesn't need to be directly underneath a high strength source to know it's there, it can be further away from it, just like we see in nature, some places are closer to the sun some further but we see dank from both places, why ? cuz in both places the source strength is the same, the sun is not different in australia or canada , just how much light each place get is different, weird how reality work...
Anyway, if a 400 hps is like the sun regarding it's source strength, just imagine a 1000w one... We all know what they can do
No wonder people report a stronger smoke with same clones under 400w and under 1000w... It all adds up now.

 

[greyfader]

you are totally clueless! what you have written above is babble. so reality and science are two different things?

you disdain science yet you use it all day long every day. your computer, cell phone, car, and everything you touch and see is the result of science.

you do not have even a basic understanding of light.

especially as it applies to plants.

 

[Jellyfish]

He didn't say reality and science are two different things.

 

[Slebban]

I wanted to get input on the results you guys are getting with these in the finished product. I've had great results in the past with HPS supplemented with additional UVB from a zoologist mega ray bulb. I'm wondering if the CMH provides enough UVB on it's own if used in bloom?

To me the lightning thing is more about the experience of the process in growing. It's quite nice to work with the plants in full spectrum. When thinking about this discussion, the evolution of the tv screen comes to mind. Black and white films can be awesome and movies in technicolor can suck. So in that case it's the content that is important, not the technical equipment.
But the progress of the screen has paved the way for more stuff such as cell phone screens etc. So I guess we should understand our place in time as one under growlight development, and hopefully there are great things ahead. Everyone who tests, thinks and tries is a part of that development. (And pays for that too..)

Anyhow, in finished product:

600w hps: Nirvana papaya(one of several phenos), chunky buds, a great kick in the high, frosty plants, quite terpy. A year at least shelf life before buds starting to go brown.

315 cmh: Ripper seeds omg(gmo x kushmints, one of several phenos) chunky buds, really frosty and awesome terps but the high wasn't really there. Great shelf life and terp development during cure.

315 cmh: Papaya/skunk/chem descendant, decent bud structure, frosty, awesome terps great high, great shelf life and terp development during cure.

200w full spectrum led, extra red: Mimosa Evo, dense bud structure, great frost, great terps, happy high medium strength. Super shelf life and terp development.

For me atleast the conclusion this far is that all these lights grow great buds. The genetics in this case seem to be what matters. And some genetics don't really give a great high although they smell and look nice.
If I had to pick only one light it would be the cmh because of the great spectrum, a nice amount of radiant heat and the superb terp development in flowers, all this gives me joy in gardening.

 

[Crooked8]

you are totally clueless! what you have written above is babble. so reality and science are two different things?

you disdain science yet you use it all day long every day. your computer, cell phone, car, and everything you touch and see is the result of science.

you do not have even a basic understanding of light.

especially as it applies to plants.

I told you man……its just gonna frustrate you. They do not have basic understanding. If you present data to them or photos, they will just scoff at it, say their bullshit unfounded piece and name call or laugh. They will never step toe to toe and present their own evidence or photos of anything concrete. Its a losing battle and they can die on their hill for all im concerned. Cant wait to post shots of the glistening insane product we just pulled from our agrobars. Lets just focus on showcasing what leds can do and let them focus on hating or preaching hps.

They dont like “paragraphs”. They dont think science is reality. They dont appreciate data or photos, the buds “look fake” or “like plastic”. Snake hasnt heard of photobleaching…….an industry standard issue nearly any hps experienced grower should be familiar with….especially with 1000w. It wont get better, its just getting worse. Lets just post our dank and what lights it came from.

Agrobar 720s - first run in this room, still dialing and pulled this…

Haters can hate all they want. With the next run here ill make it plain as day what we can achieve w Leds, this stuff here was just getting my feet wet in a new space. But its gonna be my best lab yet.

 

[Crooked8]

He didn't say reality and science are two different things.

He basically did. He offered to “explain reality concepts to science people” and says “comparing this on paper vs reality”. Thats basically saying the data and science isnt real.

 

[Jellyfish]

Again, snakedope didn't say science isn't reality. Everything else aside, repeating this is only making YOU look bad.

 

[Jellyfish]

He basically did. He offered to “explain reality concepts to science people” and says “comparing this on paper vs reality”. Thats basically saying the data and science isnt real.

No, it isn't.

 

[Crooked8]

No, it isn't.

So when i share data, from what happened in reality, in the past, and someone says “no thats just on paper not in reality”, thats somehow not disassociating the two? Grey and I both caught the same vibe but were just both wrong here?

 

[Crooked8]

No, it isn't.

However, in reality, the world we use science in all the time, it is.

 

[greyfader]

I told you man……its just gonna frustrate you. They do not have basic understanding. If you present data to them or photos, they will just scoff at it, say their bullshit unfounded piece and name call or laugh. They will never step toe to toe and present their own evidence or photos of anything concrete. Its a losing battle and they can die on their hill for all im concerned. Cant wait to post shots of the glistening insane product we just pulled from our agrobars. Lets just focus on showcasing what leds can do and let them focus on hating or preaching hps.

They dont like “paragraphs”. They dont think science is reality. They dont appreciate data or photos, the buds “look fake” or “like plastic”. Snake hasnt heard of photobleaching…….an industry standard issue nearly any hps experienced grower should be familiar with….especially with 1000w. It wont get better, its just getting worse. Lets just post our dank and what lights it came from.

Agrobar 720s - first run in this room, still dialing and pulled this…

Haters can hate all they want. With the next run here ill make it plain as day what we can achieve w Leds, this stuff here was just getting my feet wet in a new space. But its gonna be my best lab yet.
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nice flowers but i'm sure they don't get you high, lol. what strain is that?

yeah, i'm done with the science deniers. i will not ever respond to one of their posts again.

and i will suggest that everyone else who genuinely wants to make progress ignore them too.

just don't respond anymore! don't feed the trolls!

 

[greyfader]

However, in reality, the world we use science in all the time, it is.

it sure do be!

 

[Ca++]

Again, snakedope didn't say science isn't reality. Everything else aside, repeating this is only making YOU look bad.

I understand you liked his posts. However, not a single fact or figure is correct, and he turned to name calling to fend off any further interaction. The single thing outside of this bollox bubble is that hps buds put a smile of my face. Thought that's not making any soft of statement regarding other bud I have smoked. So is an isolated fact worth nothing.

If you want to pick one thing he said, that you are sure about, I will address it. Anything, except that hps weed made me smile.

 

[Hammerhead]

Chimera#4 Mars FCE-6500

 

[greyfader]

the title of this thread should have been, "finding the ideal spectrum for cannabis.

it's somehow reverted to the level of a "cmh-vs-led-vs-hps smackdown."

the same mentality that feeds on conflict and drama. the haters!

 

[Hammerhead]

Same LED.. I have no complaints about the quality LED lights can produce. Ive smoked some from the CMH side and cant tell any difference. I should add there is a CMH light in the room but it is 5' away from the Mars led..

BOG SB dom pheno.

 

[greyfader]

He didn't say reality and science are two different things.

i didn't say he said it.