Are LED's That Good?

Yodaweed

Well-Known Member
Right, but one light can use that same amount of energy more efficiently in the conversion of electrical energy to radiant energy.

@Yodaweed How much studying of Thermodynamic black boxes did you do where the plant was in the closed loop?
LEDs make more light, that doesn't mean they make less heat, watt for watt the heat output is the same, and i don't need to do any research on closed loops because the source i am using is a LAW , that means it CANNOT be disproven. Please read the thread i posted, i really am not here to argue with you guys, i am only stating the facts which are backed up by the laws of physics. 1 watt = 3.41 btu.
 

Heil Tweetler

Well-Known Member
Learn to read. That's not what he is saying. He's simply stating that a watt of LED consumes the same amount of power as a watt of HPS/MH and in so doing produces the same amount of heat.

A watt is a watt.
Learn to read? Wretched jackass STFU. You're talking tiresome, know-it-all bullshit. A 1000 watt led will destroy a 1000 w hps. It's not a question at all, it's repeatable, it's science. The reason is because an led makes more par while an hps makes more heat.

Youre a fucking archaic, witless gasbag, stop talking out of your ass.
 

Yodaweed

Well-Known Member
Learn to read? Wretched jackass STFU. Youre talking tiresome know-it-all bullshit. A 1000 watt led will destrow a 1000 w hps. It's not a question at all it's science. The reason is because an led makes maore par and hps makes more heat.

Youre a fucking archaic, witless gasbag, stop talking out of your ass.
1000w of any light = 3412.142 BTU of heat, lighting source does not matter.

http://www.rapidtables.com/convert/power/Watt_to_BTU.htm

Do some research before attacking people, it makes you look stupid to attack someone when you are clearly wrong.
 

Heil Tweetler

Well-Known Member
Yes, and I haven't driven NASCAR, but can assure you that a Geo Metro isn't going to win at Daytona. How about midgets in the NBA, or mental midgets (such as yourself) on a debate team.



Didn't realize there was an emoji for the Mocha enema^. Guess you just got that done, good for you. :bigjoint:
you're losing the battle of wits with the cringe inducing humor and feeble analogies. Your 'reasoning' reveals that youre talking out your ass as @CannaBruh observed.
 

CannaBruh

Well-Known Member
Yes, and I haven't driven NASCAR, but can assure you that a Geo Metro isn't going to win at Daytona. How about midgets in the NBA, or mental midgets (such as yourself) on a debate team.



Didn't realize there was an emoji for the Mocha enema^. Guess you just got that done, good for you. :bigjoint:
I'll rest easy knowing you are over there stewing in your failed analogies daydreaming about me getting an enema. bongsmilie :clap:
 

jwreck

Well-Known Member
Learn to read. That's not what he is saying. He's simply stating that a watt of LED consumes the same amount of power as a watt of HPS/MH and in so doing produces the same amount of heat.

A watt is a watt.
1000 watt of cobs would kick a 1000 hps out into space.
And this guy with his giant indoor trees - its 8 ft now huh? How many 1000w bulbs do you use to light a 10 ft plant cuz i know a 10 footer is gonna be even wider than that and 1 bulb is not gonna do, total waste of a grow.
While you grow those 12 footers ill be in the middle of my 3rd grow lol
 

TacoMac

Well-Known Member
Right, but one light can use that same amount of energy more efficiently in the conversion of electrical energy to radiant energy.

@Yodaweed How much studying of Thermodynamic black boxes did you do where the plant was in the closed loop?
The problem though is that the difference is negligible over the long haul.

Even a very good COB setup isn't double as efficient as a MH/HPS. It's closer to aorund 25% on average. That means that to replace a 600 watt MH you'd need to be running around 450 watts of COB lighting.

The formula for energy cost is simple. It's: (Wattage x Hours Used)/1,000 x Electric Rate ($/kWh) = Total Cost

All you do is plug in your numbers. Let's say for arguments sake I'm running a 450 watt cobb against your 600 watt HPS. Here in Georgia, the average Kilowatt per hour cost is 11.1 cents. Here's how they stack up:

450 Cobb on 12 hours on 12 hours off flowering for 8 weeks:
(450 x 12) / 1000 x 11.1 = .4864 per day
8 weeks is 56 days x .4864 = $27.24 total for the 8 weeks.

600 HPS on 12 hours on 12 hours off flowering for 8 weeks:

(600 x 12) / 1000 x 11.1 = .6486 per day
8 weeks is 56 days x .6486 = $36.32 total for the 8 weeks.

A WHOPPING savings of $9.08

So when you consider that the typical 450 watt COBB light will cost you double what the typical 600 watt HPS, then there is absolutely no savings at all unless your power cost is so astronomical it's ridiculous. (The average across the U.S. is 12 cents.)

The other issue is the heat. As mentioned earlier, a watt is a watt when it comes to heat. A watt generates 3.412 btu no matter what. So then we look at heat output:

450 watt COB: 1535.4 BTU
600 watt HPS: 2047.2 BTU

So you're looking at 511.8 BTU increase in heat for about the same amount of light. It's not really that much of a savings at all.

They're simply not worth it if you already have a light that's working well for you. About the only time I would even remotely consider getting one would be if your ballast blew up on your HPS.

Even then, I'd probably just buy another ballast as they're only a fraction the cost of the new fixture for very little savings on anything heat or power wise.

The only time it really makes any sense at all is if you're doing huge grows with tons of lighting. I'm talking about 10 to 12 fixtures. Then the overall heat and energy savings would be well worth it. The heat especially. But just one or two lights doing your own thing?

Nope. Not worth it. At all.
 

CannaBruh

Well-Known Member
We do understand that HPS cannot use electrical energy as efficiently as LED lights COBs for example, that is clear yes, the rest can be argued about but the point is the LED is a more efficient transducer.

You also cannot forget the duration of the glass bulb life, I was always replacing yearly. That is not the case with LED.
 

Heil Tweetler

Well-Known Member
The problem though is that the difference is negligible over the long haul.

Even a very good COB setup isn't double as efficient as a MH/HPS. It's closer to aorund 25% on average. That means that to replace a 600 watt MH you'd need to be running around 450 watts of COB lighting.

The formula for energy cost is simple. It's: (Wattage x Hours Used)/1,000 x Electric Rate ($/kWh) = Total Cost

All you do is plug in your numbers. Let's say for arguments sake I'm running a 450 watt cobb against your 600 watt HPS. Here in Georgia, the average Kilowatt per hour cost is 11.1 cents. Here's how they stack up:

450 Cobb on 12 hours on 12 hours off flowering for 8 weeks:
(450 x 12) / 1000 x 11.1 = .4864 per day
8 weeks is 56 days x .4864 = $27.24 total for the 8 weeks.

600 HPS on 12 hours on 12 hours off flowering for 8 weeks:

(600 x 12) / 1000 x 11.1 = .6486 per day
8 weeks is 56 days x .6486 = $36.32 total for the 8 weeks.

A WHOPPING savings of $9.08

So when you consider that the typical 450 watt COBB light will cost you double what the typical 600 watt HPS, then there is absolutely no savings at all unless your power cost is so astronomical it's ridiculous. (The average across the U.S. is 12 cents.)

The other issue is the heat. As mentioned earlier, a watt is a watt when it comes to heat. A watt generates 3.412 btu no matter what. So then we look at heat output:

450 watt COB: 1535.4 BTU
600 watt HPS: 2047.2 BTU

So you're looking at 511.8 BTU increase in heat for about the same amount of light. It's not really that much of a savings at all.

They're simply not worth it if you already have a light that's working well for you. About the only time I would even remotely consider getting one would be if your ballast blew up on your HPS.

Even then, I'd probably just buy another ballast as they're only a fraction the cost of the new fixture for very little savings on anything heat or power wise.

The only time it really makes any sense at all is if you're doing huge grows with tons of lighting. I'm talking about 10 to 12 fixtures. Then the overall heat and energy savings would be well worth it. The heat especially. But just one or two lights doing your own thing?

Nope. Not worth it. At all.
Post that screams "I'm in denial", witless, confused and too stupid, wrong and long to read.
 

Growdict

Well-Known Member
1000w of any light = 3412.142 BTU of heat, lighting source does not matter.

http://www.rapidtables.com/convert/power/Watt_to_BTU.htm

Do some research before attacking people, it makes you look stupid to attack someone when you are clearly wrong.
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.
 

Heil Tweetler

Well-Known Member
And again the village idiot post a bunch of bullshit while everybody else is posting formula's, facts, figures and actual costs.
No.

Youre the asshole who refuses to acknowledge that your ways are played out. The imbecile level indignation and creation camp math formulas fail to conceal your mistaken beliefs and slavish commitments to rusty tech.
 
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