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CMH vs LED vs HPS
- Thread starter Gerardbutler79
- Start date
Ca++
Well-known member
I'm not sure combustion is quite the right word.
In each case, we exert pressure upon an electron, making it gain energy to do something it's not happy with. It sheds the energy to find it's place again. This energy loss is of interest to us.
In the HID we have a very excited cloud of heated matter, which we are sending masses of electrons through. This displaces those present. Made easier by the molten like state. As we knock electrons from the inner orbits around atoms, electrons from outer orbits will fall in to replace them. Atoms really like the inner valances (orbits) to be correctly populated, and are less interested in the outer ones. For an electron to jump to an orbit closer to the center, it must loose energy. The emission we are looking for.
In the LED, we are not getting an electron to change orbit around a nucleus where it's already entangled. Or a neighbour, as in more plasma like states. In the LED, we give the electron enough shove to jump a gap to a different bit of matter. As it traverses the void, it gets to loose the energy that made it jump. It may even have to, to take it's place where it's going.
So one is a soup of matter, where charged up electrons just want to calm down. The other is electrons being forced to jump, and crapping themselves.
I think that's about right.
I find it interesting that however we promote that electron to move, that's perhaps all we do. Like a build up of kinetic energy, that leads to the same sort of emission when it slows again. It's physics beyond my high school grade tbh. Though I do know a fair bit more foundation
In each case, we exert pressure upon an electron, making it gain energy to do something it's not happy with. It sheds the energy to find it's place again. This energy loss is of interest to us.
In the HID we have a very excited cloud of heated matter, which we are sending masses of electrons through. This displaces those present. Made easier by the molten like state. As we knock electrons from the inner orbits around atoms, electrons from outer orbits will fall in to replace them. Atoms really like the inner valances (orbits) to be correctly populated, and are less interested in the outer ones. For an electron to jump to an orbit closer to the center, it must loose energy. The emission we are looking for.
In the LED, we are not getting an electron to change orbit around a nucleus where it's already entangled. Or a neighbour, as in more plasma like states. In the LED, we give the electron enough shove to jump a gap to a different bit of matter. As it traverses the void, it gets to loose the energy that made it jump. It may even have to, to take it's place where it's going.
So one is a soup of matter, where charged up electrons just want to calm down. The other is electrons being forced to jump, and crapping themselves.
I think that's about right.
I find it interesting that however we promote that electron to move, that's perhaps all we do. Like a build up of kinetic energy, that leads to the same sort of emission when it slows again. It's physics beyond my high school grade tbh. Though I do know a fair bit more foundation
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if u have the proper conditions, nothing beats weed grown under the sun... and if said weed has been pollinated , it brings it to another level... thats my un-scientific findings after smoking for 50yrs...
Pollinated plants put most of their energy into seed production. I have had partially seed plants turn out better or as good as unseeded. A fully seeded plant's quality is drastically reduced IME.. Ive never really tested quality differences in partially seeded.. It is on my list of possible reasons the quality shifted from 1970. Most weed back than was seeded.
back in the day they would have been selecting by best seeded quality
I'll say the best weed I ever had was seeded
of course a good 80% of the weight could be seed, and that's a deal killer
I had a peculiar hermie where large parts were seedless and other parts seeded
the seeded was like coming home, memories of old Mex came back
it wasn't as strong as the seedless stuff, but it was better
I'll say the best weed I ever had was seeded
of course a good 80% of the weight could be seed, and that's a deal killer
I had a peculiar hermie where large parts were seedless and other parts seeded
the seeded was like coming home, memories of old Mex came back
it wasn't as strong as the seedless stuff, but it was better
CannaT
starin' at the world through my rearview
I found out that seeded plants eat much more P than normal.
Cerathule
Well-known member
Yes absolutely, the P accumulates in the seeds
plonixgenetix
New member
I did an experiment this year. I wanted to pollinate about 15 cuts and decided to put them all outside in April and see if it would work. It did . I just cut them down , loaded with seeds and this is the frostiest outdoor seeded plant I have grown. Loaded it with P even in veg.
Attachments
memories of 1969, seeded bud..most of it sucked (what did we know), but some was good.... and the black hash.... with the pink cocaine, and the sopers, then quaaludes ... it was a glorarius time in america
greyfader
Well-known member
very nice! i have a few questions for you if you don't mind.
what latitude are you and did you use any partial shading?
and what dli range are you in the month of july?
plonixgenetix
New member
Looks like I'm in the 40-45 dli range and about 42 latitude. I didn't use any shading, April was mostly cloudy anyway.
greyfader
Well-known member
thank you!
greyfader
Well-known member
so, the dli map for july should be the most intense month and also after about the 21st, the solstice, flowering begins.
1000 umols for 12 hours is 43.2 moles but outdoors the plant usually does not get that much sustained over a 12-hour period. it would be nice to see an hourly plot of a typical day.
the light intensity builds up, peaks, and then goes back down. along with the increasing intensity there is increasing temperature. both drive up and then down the metabolic rate.
my point is that the intensity is not static but is dynamic and constantly changing, intensifying and then lessening.
saturating the photosynthetic apparatus and then allowing time to process the synthase.
indoors we apply the light statically for a prescribed period and i'm thinking that we should be using a lower dli with leds than with hid lighting because of the multi-point nature of leds.
the extremely wide diode beam angles plus the multi-point distribution of the emitters have to be driving a higher metabolic rate overall than an equivalent hid light even with the same par meter spot reading at the top of the plant.
the led fixtures radically reduce the shaded surface area.
several people earlier in this thread said that they got excellent led yields with about 750 umols for the 12-hour period.
that would be 32.4 moles per day.
i have, over the last year, done some high dli grows like 1500 umols for 12 hours which is 64.8 moles per period.
i think it over-saturated the plants and stunted the top flowers. i got better flowers 6-8" down from the tops.
i also did a couple of grows with an 8-hour photoperiod but, again, i used 1500 umols which is 43.2 moles, and got better top flowers but i thought they should have been larger.
so, i'm just about to apply 1100 umols for 8 hours which is 31.68 moles per period.
i'm using all 2700k led bulbs plus a few 25-watt incandescents for flower.
we'll see what happens.
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Im starting to think the yellowing I get is from the HLG only. I have Mars and another cheap LED. These do not cause any issues to speak of. I don't add any extra CAL/MAG using them. This is being flowered under the 250$ 800w led. Ive not added any extra cal/mag. She is full of seeds. She would be much more faded under the HLG diablo
Corpselover Fat
Active member
Have you checked the light levels under the diablo and cheap light? The diablo is just white lm301b in4000k(?) and some 660's.
Edit: looks like the cheap one also is 4000k whites and some 660's.
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Not on the HLG, I have on the cheap light. The cheap light is keeping plants happy better for me than the Diablo R has..
Diablo R uses Samsung LM301H (white) and LH351Hs (red)..
Cheap led uses Bridgelux def not top bin.
