Can a light get too efficient

1212ham

Well-Known Member
No, you feel SOME of them as heat, and the proportions are different with different lights due to how they convert the electrical energy into something else.
What? You are saying only some of the radiated light is converted to heat? What happens to the rest of the energy in the radiated light? What is the "something else" you refer to?
#1w-3.4BTU
 
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Fubard

Well-Known Member
What? You are saying only some of the radiated light is converted to heat? What happens to the rest of the energy in the radiated light? What is the "something else" you refer to?
You think light and heat are the only forms of energy?
 

Roger A. Shrubber

Well-Known Member
No, the ambient will change to be equal to the temperature produced by the light and no higher without an external influence, and if one light produces more light energy than heat compared to the other then in a sealed room the temperature will rise to a lower maximum level as otherwise you are creating more energy than consumed.
no, the amount of light produced is irrelevant, its the amount of energy consumed. that has to turn into something. it turns into heat and light. the light eventually is all absorbed by material in and around your grow area, and turned into heat. it all evens out in the end, you just aren't looking far enough down the road.
 

Fubard

Well-Known Member
no, the amount of light produced is irrelevant, its the amount of energy consumed. that has to turn into something. it turns into heat and light. the light eventually is all absorbed by material in and around your grow area, and turned into heat. it all evens out in the end, you just aren't looking far enough down the road.
Rubbish, as has been stated more than once.
 

Roger A. Shrubber

Well-Known Member
look, everyone is just chasing the original point around in circles.
the original question was can a light be too efficient, and the answer is, it depends on your goal. if you want to use it in a real world application where heat is a concern, then depending on your environment, yes, its possible to be too efficient, if you need the heat from that light to help maintain good conditions.
if you're trying to get the most par light possible at the lowest energy use, then obviously, no, a light can never be efficient enough.
all the rest of this is just people arguing their opinions.
it's been fairly well accepted that leds produce the same amount of heat at the same wattage, but it's not the same type of heat, and is easier to deal with in general.
you can argue anything else you want to, but those facts remain, and if you can't accept it, then you're never going to get how it works.
because Fu, you're wrong, and it's going to take an epiphany for you to get it.
 

Fubard

Well-Known Member
look, everyone is just chasing the original point around in circles.
the original question was can a light be too efficient, and the answer is, it depends on your goal. if you want to use it in a real world application where heat is a concern, then depending on your environment, yes, its possible to be too efficient, if you need the heat from that light to help maintain good conditions.
if you're trying to get the most par light possible at the lowest energy use, then obviously, no, a light can never be efficient enough.
all the rest of this is just people arguing their opinions.
it's been fairly well accepted that leds produce the same amount of heat at the same wattage, but it's not the same type of heat, and is easier to deal with in general.
you can argue anything else you want to, but those facts remain, and if you can't accept it, then you're never going to get how it works.
because Fu, you're wrong, and it's going to take an epiphany for you to get it.
So you're right and the rest of the world is wrong because you ignore the laws of conservation of energy?
 

SSGrower

Well-Known Member
And if it is fully consumed then none is converted into heat, it is transferred into another state.

It's not always turned into heat.
Yes it ultimately is.
This is why I keep saying the univers is cooling. It is the only way I can think of wording it simply.

We should not be concerned with the concept of "cooling" the grow envirnment. We are only managing heat, and air conditioner is not a cooler it is a heater.
 

1212ham

Well-Known Member
How many other forms are there?

Plants and microorganisms don't turn light into heat, do they.

Come on, there's a clue for you.
So, your answer to a question is another question?

Let's be specific and not talk in riddles and clues.

Can you or can you not tell us what the other form of energy is that you refer to?
#1w-3.4BTU
 
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Ryante55

Well-Known Member
That great in a sealed and static environment. But the way IR is absorbed by, (and thus the degree to which it heats) biomass changes the variables greatly. The ability to cool more easily with less extraction due to the way the heat is radiated, combined with the ability to run the room warmer due to a much smaller temperature variance between ambient and canopy means that I actually use less real world energy to maintain my grow.
None of what you said makes him wrong in any way.
 
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