Im not comparing. I've already made my choice of what lights I like. Showing pretty pics and my opinions is all im adding lol. I don't expect anyone to agree.
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CMH vs LED vs HPS
- Thread starter Gerardbutler79
- Start date
You always post pictures and are critical of your own grow and honest about your successes and occasional mistakes. And your herb and seeds have been sampled by more people than just yourself.
For these reasons alone your opinions are at least slightly more valuable than some random jerks that mostly want to tell others how they are doing it all wrong.
wild cat
Active member
Oglądałem Twoje zdjęcia, jesteś bardzo dobrym hodowcą. I like reading you
I appreciate the positivity in this post. There's so much negativity going on in the world we don't need to add more BS. There's always a way to have a conversation that doesn't insult. I'm just as guilty as the next guy at times when it turns personal. Miscommunication is the biggest cause of the BS I see. Adding opinions to discuss is what this site is for. It should never be personal when we disagree...
I like to talk some shit from time to time. I suppose it's better to take it out on a random internet stranger than my own family at home. Still no excuse but we are all guilty occasionally.
I like looking around on here and learning things. Whether it be breeding, genetics, grow room design, soil.... whatever. When i learn something new I want to try or even stop doing myself. It's nice that some of you have documented so much of their work. In some ways the choices I make gardening are an average of what I saw others succeed or fail at. All of the information is valuable. And I have watched many of your (not just yours obviously) gardens grow and change over the years.
CannaT
starin' at the world through my rearview
Im not the smartest one,just one who think.
Im learning from everyone.
I learned more english from you. (give gave given) so I gave to you.
Thank for knowladge
wild cat
Active member
Twoje plants są zmęczone
CannaT
starin' at the world through my rearview
Google translate man plz.
Its international english is consider as int language.
So please type in English.
CannaT
starin' at the world through my rearview
Jesteś całkowicie szalony
I know you're not comparing, I'm saying the thread is comparing different kinds of lights.
"Showing pretty pics and my opinions is all im adding lol. I don't expect anyone to agree." Then we are on the same page. I'm not mad, I'm not butt hurt, and I'm not trying to be negative. May Peace and Harmony rule in the Land of ICMAG!
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The best post here in a while. Great attitude, im with you. I was told “if i have it, ill have haters”. Well, Ive certainly gained some since posting lately but hey, im just gonna keep doing what I do and not take offense if someone calls it “mids”. Ive been a member here a long ass time and the good from it outweighs the childish hate 100 fold.
We all end up with haters the more visible we are. Such is life.
greyfader
Well-known member
just a little personal experiment. they've already gotten bigger than they should be at this point but i haven't been feeling really well the last week and let them go a little bit.
i have to do some more thinning and tying and should be able to flower them tomorrow or the next day.
i intend to run the room at 30c using both ambient and radiant heat. my thinking is that if the ambient is high maybe we don't need a large amount of far-red and infrared. just enough to stimulate bud extension and achieve a higher metabolic rate. the greater leaf surface penetration of infrared might be involved in signaling as much as stimulating the metabolic rate.
heat is the second most powerful regulator of metabolism after light.
Pictures is all LED is good for. Can’t smoke pictures.
Ca++
Well-known member
Sounds good. All our plants are different, but in the 28-30 region is likely their peak. It seems with IR levels we can feel, we can drop below that range, with the effects being less felt than without IR. Logic can explain this, if we forget room temp and look more at the upper leaf temps. They might not be at the mercy or air temps so much, when it's IR warming them. Obviously transpiration in the growing tissue is important, and evaporating water uses heat energy. Something others have not spoke of around me, is that the effect of IR aiding transpiration, won't be seen on a thermometer. The heat was used, but no leaf temp increase is seen, if the heat energy has left in the vapour. All this really means is our measuring equipment can't see the full heat energy use. We can, to some degree, add more IR without warming the leaf further, if the leaf in turn opens up the stomata to increase transpiration. So we can indeed get to a lower air temp, without slowing transpiration, using IR, than not using IR. As it's heat energy reaching the plant, that our thermometer doesn't see.
28+ though... any lower and I'm sure things will slow.
Conversely, if we move above the 28-30 window, it becomes the LEDs that cause less problem. Again, it's likely that IR the thermometer misses. This is all growth rate talk. There is one other small issue. There is more than water leaving our plants as it gets hotter. LED grows hold on to more terps. People should really know this without being told. We are not at vapouriser temps, but if people don't think smell is being lost off their grow, they don't need to buy carbon filters anymore.
I'm not sure IR is involved with the stretch. I would need to look, but think it's the far red 730nm stuff. Light they can see, but don't make an effort to harvest. Like green, it passes through easier. The red 630 - deep red 660, are harvested by the plant, but the far red gets to penetrate more. These are the bands associated with the pfr chatter I have not really let sink in. It seems a separate topic almost. The plant doesn't like to see high 730 when compared to 660. It presumes the light has been filtered through a neighbour. The 660 content of the light, sets the expectation of 730 that should be seen.
We don't quite get it yet. So anyone can have an opinion
Someone spoke about heaters. Most heaters are not reaching the temperatures needed to give off high energy particles. 1500nm... easy. 1000nm...probably. 840nm... that is stinking hot. 730nm... that fucker is starting to glow. We are getting to cherry red now. Emissions that are useful for targeting plants responses to light.
The incandescent lamp is such a good choice, as it's nothing but a very hot heater. Putting out oodles of light in the region that we want, but that make it a bad lamp at making light to see with. Lots of red and far red, with a graphed out spectral slope, to pick up where the white LEDs lets off perfectly. If we use a heater, the slope is set further to the right. So there would be a dip Between the LEDs and heaters.
28+ though... any lower and I'm sure things will slow.
Conversely, if we move above the 28-30 window, it becomes the LEDs that cause less problem. Again, it's likely that IR the thermometer misses. This is all growth rate talk. There is one other small issue. There is more than water leaving our plants as it gets hotter. LED grows hold on to more terps. People should really know this without being told. We are not at vapouriser temps, but if people don't think smell is being lost off their grow, they don't need to buy carbon filters anymore.
I'm not sure IR is involved with the stretch. I would need to look, but think it's the far red 730nm stuff. Light they can see, but don't make an effort to harvest. Like green, it passes through easier. The red 630 - deep red 660, are harvested by the plant, but the far red gets to penetrate more. These are the bands associated with the pfr chatter I have not really let sink in. It seems a separate topic almost. The plant doesn't like to see high 730 when compared to 660. It presumes the light has been filtered through a neighbour. The 660 content of the light, sets the expectation of 730 that should be seen.
We don't quite get it yet. So anyone can have an opinion
Someone spoke about heaters. Most heaters are not reaching the temperatures needed to give off high energy particles. 1500nm... easy. 1000nm...probably. 840nm... that is stinking hot. 730nm... that fucker is starting to glow. We are getting to cherry red now. Emissions that are useful for targeting plants responses to light.
The incandescent lamp is such a good choice, as it's nothing but a very hot heater. Putting out oodles of light in the region that we want, but that make it a bad lamp at making light to see with. Lots of red and far red, with a graphed out spectral slope, to pick up where the white LEDs lets off perfectly. If we use a heater, the slope is set further to the right. So there would be a dip Between the LEDs and heaters.
Ca++
Well-known member
As others have said, I can turn up anywhere, any time, and sell my green for any price I like. I can climb over bags of the stuff to get in, put my bag on the table, and the recipient will squirrel it away like some sort of meanie. No matter who is there wanting to see, it's going away for later. Any reasonable quantity. No words. No looking. They know they want it, and nobody else should see it. It's a niche product that doesn't ever see a 10 bag.
If anyone asks if it's any good, I say no, it's shit. I don't want to engage with weed nerds or grow bores in real life. I don't want to see in peoples rooms. I find little interesting about the grow lives of my real life peers.
Perhaps you will understand, that nobody knew when I switched to LEDs. It was a few years until I found myself in a LED hate group, having my green used as the HID anchor. Only then did I kill the party. Dropping the bomb that left nothing to be said.
It's moments like those that say the most about the lighting debate. True blind testing, Where peoples favourite product, known for decades, was switched and nobody noticed.
If anyone asks if it's any good, I say no, it's shit. I don't want to engage with weed nerds or grow bores in real life. I don't want to see in peoples rooms. I find little interesting about the grow lives of my real life peers.
Perhaps you will understand, that nobody knew when I switched to LEDs. It was a few years until I found myself in a LED hate group, having my green used as the HID anchor. Only then did I kill the party. Dropping the bomb that left nothing to be said.
It's moments like those that say the most about the lighting debate. True blind testing, Where peoples favourite product, known for decades, was switched and nobody noticed.
windmills
Well-known member
I can't be certain of this (can any of us be certain about anything?), but it appears after multiple crops from five or six knowledgeable folks, who I directly know and am aware of their product, that stand alone LED"s, in their current timeline form, overall, might produce what is high quality visual and perhaps even weight-wise quite good crops, but for those who are strictly looking out for their own stash, and a few close friends, HPS might be the choice to make. I believe most of what we are seeing in the dispensaries now days is coming primarily from LED sources. I am going to try a mixed run my next one using T5 3000K tubes as an augment to HPS. One of my friends has a virtually identical setup to mine, and we are going to start and run the same hybrid, him without using T5's however. I think LED's may be a few years away at least from duplicating the smoke quality results of HPS for flowering. That is our group consensus. We are all looking to save money on electric I know, so that would be wonderful if they can do it.
