Are LED's That Good?

TacoMac

TacoMac

Well-Known Member
Heil Tweetler said:
creation camp math formulas
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LMAO!!!

OK, pal. LOL! Whatever. The entire world electrical engineering community is wrong and you're right.

You're just one of those sad, pathetic little stupid people that shelled out for a COB so COB is best and COB is God and COB is life and no other light works and no other light can grow decent weed and you must buy COB.

Moron.

Nobody ever said that COB's and LED's didn't work.

Nobody ever said that COB's and LED's aren't more efficient.

All anybody has said (and I'll type your way so you will hopefully be able to read it) is:

OP ALREADY HAS AN HPS, so FOR HIM, it's simply NOT WORTH BUYING A COB/LED UNTIL SOMETHING GOES SOUTH WITH HIS LIGHT BECAUSE THERE JUST ISN'T THAT MUCH OF A DIFFERENCE IN PERFORMANCE.

Read that about 10 times, dumbass, and see if it sinks in.
 
torontoke

torontoke

Well-Known Member
Yodaweed said:
Heat is based on watts used , not lighting type. HID lights do not produce any more or less heat than an LED with the same wattage.
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If the led has a higher efficiency rating then more of its watt usage gets used to make actual light not 60/40 light to heat like an hps.
I understand your thinking that a lb of led weighs the same as a lb of feathers but the fact is 3-400watts of the 1000watter gets converted into heat so you would only need to match the light output of 600watts.
Is that not how efficiency works?
 
TacoMac

TacoMac

Well-Known Member
torontoke said:
If the led has a higher efficiency rating then more of its watt usage gets used to make actual light not 60/40 light to heat like an hps.
I understand your thinking that a lb of led weighs the same as a lb of feathers but the fact is 3-400watts of the 1000watter gets converted into heat so you would only need to match the light output of 600watts.
Is that not how efficiency works?
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Once again, apples and oranges.

This thread is NOT ABOUT 1000 watt LED'S/COBS. You guys take each and every thread about lights to the same bullshit end: a bunch of chest pounding about high power.

The OP has a 600 watt HPS and does well with it. He was simply wondering if upgrading to an equitable LED/COB would make THAT MUCH of a difference.

The fact is, it doesn't. I've done all the math on it. It's not even remotely worth it for him.

You guys just can't help talking about completely baseless, worthless, off topic shit when it comes to lighting. It's like if somebody says they have a Honda Accord and want some air filter recommendations and all you guys start talking about King Rat Chevrolet V'8's and GMC 6-71 Blowers.
 
Growdict

Growdict

Well-Known Member
no- what he is saying is that led is say 60% light / 40% heat that all turn into heat once they strike an object. so no difference than same wattage of hps that is 30% light/70% heat = 100% heat once all light has hit a target. it is a thermodynamic law, i understand that. I am disputing the higher photon absorption rate being the reason for the commonly found reduction in tent/room temp.

I also agree with TacoMac. If the user is getting success with a 600watt HPS, it is probably not worth replacing with COB unless your kwh cost is extremely high
 
torontoke

torontoke

Well-Known Member
TacoMac said:
Once again, apples and oranges.

This thread is NOT ABOUT 1000 watt LED'S/COBS. You guys take each and every thread about lights to the same bullshit end: a bunch of chest pounding about high power.

The OP has a 600 watt HPS and does well with it. He was simply wondering if upgrading to an equitable LED/COB would make THAT MUCH of a difference.

The fact is, it doesn't. I've done all the math on it. It's not even remotely worth it for him.

You guys just can't help talking about completely baseless, worthless, off topic shit when it comes to lighting. It's like if somebody says they have a Honda Accord and want some air filter recommendations and all you guys start talking about King Rat Chevrolet V'8's and GMC 6-71 Blowers.
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I'm not pounding my chest about anything sir
Everyone is getting bent out of shape over the same old arguments and it really goes nowhere.
If the ops 600watter is 60-70% efficient that means he's getting between 360-420 actual light watts. So even a 400watt led that is 90% efficient is comparable.
Such an led could be built for the cost of 2-3high end bulb changes but everyone talks like led is still super expensive.
This isn't a commercial grower thinking of swapping out every light in his warehouse.
That's a whole different convo
 
TacoMac

TacoMac

Well-Known Member
Growdict said:
I also agree with TacoMac. If the user is getting success with a 600watt HPS, it is probably not worth replacing with COB unless your kwh cost is extremely high
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Exactly. I've only come across one guy that it was really worth it for. He lived in Hawaii and his Kilowatt hour cost was around 30.

So if we go back to my example of the 450 watt COB vs the 600 watt HPS, that $9.00 difference over 8 weeks turns into a 25 dollar difference really quick. If you add in the veg state, you're looking at a pretty major difference in expense over the life of a grow.

But Hawaii is the only state in the union with power cost anywhere near that high.
 
Growdict

Growdict

Well-Known Member
of course the other side of the arguement is what are you doing with the extra weed, if you directly replaced a 600w hps with a 600w COB. My 600w COB is getting me 1.5 pounds or more per run. If that extra is sold off - there is an easy case where it pays itself off pretty quickly.
 
Tim Fox

Tim Fox

Well-Known Member
TacoMac said:
In a word, no.

The problem is that there is so much absolute crap out there that it's far more likely you'll get a shit light than not.

Everybody loves to brag about their particular shit because they paid for it, and they're welcome to it. But the indisputable, absolute fact is that MH/HPS has worked well and is still by far the most absolutely reliable light source out there and has been for decades.

We now return you to your regularly scheduled LED/COB brag-fest already in progress.
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It's not shit if you build it yourself well maybe yours would be
 
TacoMac

TacoMac

Well-Known Member
Tim Fox said:
telling your self that because the costs of purchasing bulbs is going to put you way over the cost of led in due time
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You've obviously not priced bulbs lately. The run of the mill 600 watt hps bulb is now less than 15 dollars. They last 32,000 hours. (About 5 years and change.)
 
Yodaweed

Yodaweed

Well-Known Member
Growdict said:
Do you disregard photsynthesis? You know, the whole point of adding photons to a plant. Photosynthesis absorbs photons and turns them into sugar energy for the plant. These missing photons now do not create heat when striking a surface. You are disregarding this chemical reaction in your zero sum physics law.

Please feel free to be scientific about it and run a simple experiment. If you want to ignore all first person experiences, I am sure you can devise an experiment (including plants) to prove your point. I await your results.
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torontoke said:
If the led has a higher efficiency rating then more of its watt usage gets used to make actual light not 60/40 light to heat like an hps.
I understand your thinking that a lb of led weighs the same as a lb of feathers but the fact is 3-400watts of the 1000watter gets converted into heat so you would only need to match the light output of 600watts.
Is that not how efficiency works?
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You both are totally wrong.

You just don't get it, doesn't seem several of you guys do, 600w of any light source is the same heatload as 600w of another, the only difference is how effective they are at growing, the heat load is the same. Photon absorption has nothing at all to do with heat load.


The only advantage to using an LED is you get more light per watt , which allows you to use SLIGHTLY less wattage , it's about 750watts for a quality LED to match a 1000w hps. If you use even wattage the heat load will be exactly the same.

I am done here you guys are too dumb for me to continue on, all responses will be ignored at this point. If you need to know more go read the first law of thermodynamics or comment on this thread https://www.rollitup.org/t/heat-from-1200w-of-1212s-vero-29s-cxm-22-cxb3590-compared-to-2x-600w.936071/ and have someone else help you.
 
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jwreck

jwreck

Well-Known Member
OP - ive been running the same COB led lights for over 18 months now no decrease in performance, no replacing parts or bulbs, no need to get rid of bulbs, come to think of it the lights paid for themselves in one grow.
i wasnt pumping my chest some dude was in here talking about one of his lowers (HID) would beat out a top cola from any led or cob grow and that kind of BS needs to be corrected.
i for one am not going back to hps even if these shits go bad ill just invest in some more
 
GrandfatherRat

GrandfatherRat

Active Member
jwreck said:
i dont profit from led sales, i call it how i see it.
makes no difference to me if you prefer t5s or hids. happy growing and mucho blessings to you and your garden

@Odin* who the hell grows 10' - 12' plants indoor? no wonder you getting shitty results from leds lol
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Some of the most successful professional growers I know grow close to 12' plants in indoor greenhouses.

I work in the CO industry, and visit at least a half dozen grows and dispensaries every week. I have seen one facility using LED so far on a test basis, and it's a grower who is known locally as the 'Wal-mart of weed' because of their grow techniques. I would never buy their weed. My home grow uses my greenhouse and the sun; for the winter months I run a 1K MH and HPS in the basement.
 
TacoMac

TacoMac

Well-Known Member
jwreck said:
OP - ive been running the same COB led lights for over 18 months now no decrease in performance, no replacing parts or bulbs, no need to get rid of bulbs, come to think of it the lights paid for themselves in one grow.
i wasnt pumping my chest some dude was in here talking about one of his lowers (HID) would beat out a top cola from any led or cob grow and that kind of BS needs to be corrected.
i for one am not going back to hps even if these shits go bad ill just invest in some more
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Again, NOBODY ever said MH or HPS was better. THE POINT OF THE POST WAS: IS IT WORTH IT TO BUY ONE WHEN HE ALREADY HAS A WORKING HPS.

The answer is clearly: NO.

He's better off waiting until his current MH/HPS goes south on him and then making a new purchase.

I'm out. You fucking LED assholes are so god damned stupid it's beyond the pale.
 
Tim Fox

Tim Fox

Well-Known Member
TacoMac said:
Again, NOBODY ever said MH or HPS was better. THE POINT OF THE POST WAS: IS IT WORTH IT TO BUY ONE WHEN HE ALREADY HAS A WORKING HPS.

The answer is clearly: NO.

He's better off waiting until his current MH/HPS goes south on him and then making a new purchase.

I'm out. You fucking LED assholes are so god damned stupid it's beyond the pale.
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Oh well since you put it that way yes you are correct
 
Creature1969

Creature1969

Well-Known Member
The misinformation coming from people who have not switched is amazing.

I haven't seen 1 person complain after switching from HID to COB or QB.

Growth rate alone is worth it imo. My side branches are as tall as the main by like day 25 with no training. My MH/HPS didn't do that. 400w HPS and 4 autos gave me around 9-10oz. 330w COBs and I'm looking at over a lb from 3. Most of their life was under 220w.

But, if you're happy with your light and not just looking to blow cash...
 
Tim Fox

Tim Fox

Well-Known Member
Yodaweed said:
You both are totally wrong.

You just don't get it, doesn't seem several of you guys do, 600w of any light source is the same heatload as 600w of another, the only difference is how effective they are at growing, the heat load is the same. Photon absorption has nothing at all to do with heat load.


The only advantage to using an LED is you get more light per watt , which allows you to use SLIGHTLY less wattage , it's about 750watts for a quality LED to match a 1000w hps. If you use even wattage the heat load will be exactly the same.

I am done here you guys are too dumb for me to continue on, all responses will be ignored at this point. If you need to know more go read the first law of thermodynamics or comment on this thread https://www.rollitup.org/t/heat-from-1200w-of-1212s-vero-29s-cxm-22-cxb3590-compared-to-2x-600w.936071/ and have someone else help you.
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Reminds me of the " closed thread " over the weekend,
Hey i get you heat is heat, pretty easy to understand,
It's like a Merry go round around here
 
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