Led guys chime in

PJ Diaz

Well-Known Member
You get built for watts changing your amperage doesn't change your watts
OK, I'm gonna break it down mathematically for you. For the sake of math variables, let's assume that power cost is $0.25/KwH.

@ 115v your driver is around 90% efficient. @ 230v is is around 94% efficient.

Math is AC voltage input (V) x current(A) / efficiency (E) = DC output wattage (DCw)
DCw=V*A*E

Let's say we want 5000 total DC watts powering our LED boards in our grow room.

@ 115v:
5000=(115*A)/0.9
5000=127.78A
=529 KwH/month - flowering 12/12

@ 230v:
5000=(230*0.5A)/0.94
5000=122.34A
=506 KwH/month - flowering 12/12

Total savings: approx $75/year
 

PadawanWarrior

Well-Known Member
OK, I'm gonna break it down mathematically for you. For the sake of math variables, let's assume that power cost is $0.25/KwH.

@ 115v your driver is around 90% efficient. @ 230v is is around 94% efficient.

Math is AC voltage input (V) x current(A) / efficiency (E) = DC output wattage (DCw)
DCw=V*A*E

Let's say we want 5000 total DC watts powering out LED boards in our grow room.

@ 115v:
5000=(115*A)/0.9
5000=127.78A
=529 KwH/month - flowering 12/12

@ 230v:
5000=(230*0.5A)/0.94
5000=122.34A
=506 KwH/month - flowering 12/12

Total savings: approx $75/year
 

Frank Nitty

Well-Known Member
Yeah, if you shoot alot, it makes sense... ammo is higher than Willie Nelson, and most of the time, hard to find. I have a pretty large collection of handguns, rifles, shotguns,... but this one is like $17 for 500 rounds. I buy ammo whenever I can find it, even if I don't need it. Most of my friends have 1000's of rounds stocked up. I used to buy Russian 7.62x.39 by the 1000 rd sardine can.. but you just can't find it anymore. And IF you can, it's high as hell.
EDIT: Sorry OP for the thread derail... Just buy an HLG, and you'll be happy.
Hlg
 

rootforme

Well-Known Member
OK, I'm gonna break it down mathematically for you. For the sake of math variables, let's assume that power cost is $0.25/KwH.

@ 115v your driver is around 90% efficient. @ 230v is is around 94% efficient.

Math is AC voltage input (V) x current(A) / efficiency (E) = DC output wattage (DCw)
DCw=V*A*E

Let's say we want 5000 total DC watts powering our LED boards in our grow room.

@ 115v:
5000=(115*A)/0.9
5000=127.78A
=529 KwH/month - flowering 12/12

@ 230v:
5000=(230*0.5A)/0.94
5000=122.34A
=506 KwH/month - flowering 12/12

Total savings: approx $75/year
The efficiency doesn't come from the power company side the efficiency comes from the fact that you're using less amperage through the internal wiring of your business or home causing there to be less heat in the line causing less loss on your internal lines which has no bearing on your actual utility bill. Your math is wrong. You're still using the same amount of kilowatt hours per month regardless of the efficiency of the lamp the only thing that you're getting from the lamp is more utilizable power but both ways you're still drawing the same ac power. Regardless of the efficiency of the LED you're still drawing the same current AC. Even if your LED light uses 230 volts more efficiently converting to DC power that's happening after the draw from the power company already. It's like getting more mpg but you still used a gallon and you're still paying $4.00 per gallon. So no you're not really saving $75 per year unless you're turning off your light to make up for its efficiency. Otherwise you're still drawing the same power

You're still drawing the same watts regardless of how efficient your LED is at using it.

Or think of it like this your LED is not getting more power because it's more efficient it's actually having less loss so you're drawing the same power either way just your experiencing less loss because your higher voltage wiring is lower gauge and has less heat and less loss. Your bill however will be exactly the same.

:hump:
 
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PJ Diaz

Well-Known Member
The efficiency doesn't come from the power company side the efficiency comes from the fact that you're using less amperage through the internal wiring of your business or home causing there to be less heat in the line causing less loss on your internal lines which has no bearing on your actual utility bill. Your math is wrong. You're still using the same amount of kilowatt hours per month regardless of the efficiency of the lamp the only thing that you're getting from the lamp is more utilizable power but both ways you're still drawing the same ac power. Regardless of the efficiency of the LED you're still drawing the same current AC. Even if your LED light uses 230 volts more efficiently converting to DC power that's happening after the draw from the power company already. It's like getting more mpg but you still used a gallon and you're still paying $4.00 per gallon. So no you're not really saving $75 per year unless you're turning off your light to make up for its efficiency. Otherwise you're still drawing the same power

You're still drawing the same watts regardless of how efficient your LED is at using it.

Or think of it like this your LED is not getting more power because it's more efficient it's actually having less loss so you're drawing the same power either way just your experiencing less loss because your higher voltage wiring is lower gauge and has less heat and less loss. Your bill however will be exactly the same.
Dude, you are hopeless. The efficiency comes from the driver's ability to convert from AC to DC better with higher voltages. Call Meanwell or HLG and ask them if you don't believe me. HLG customer service will clear this right up for you.

That said, you told another user to take some classes. Perhaps you could tell us what classes you've taken to provide yourself with such a level of ignorance under the false pretense of "an education".
 

rootforme

Well-Known Member
Dude, you are hopeless. The efficiency comes from the driver's ability to convert from AC to DC better with higher voltages. Call Meanwell or HLG and ask them if you don't believe me. HLG customer service will clear this right up for you.

That said, you told another user to take some classes. Perhaps you could tell us what classes you've taken to provide yourself with such a level of ignorance under the false pretense of "an education".
Exactly like you said convert the AC to DC better but you're still starting with the same ac power and the very thing you're getting billed for is the ac power.. Like you said your light converts it better you're not converting the power coming in from the power company you're converting it at the light when it converts it to DC power but the same AC power remains constant so your bill remains the same.

You're hopeless..
 

PJ Diaz

Well-Known Member
Exactly like you said convert the AC to DC better but you're still starting with the same ac power and the very thing you're getting billed for is the ac power.. You're hopeless..
You need more AC power using 115v to get the get the same amount of DC power as you would using 230v, to the tune of about 4% difference. Problem with your argument is that facts are on my side, and you haven't considered all variables in your limited equations. AKA, my math is better than yours. Simple. Ask any electrical engineer. You won't because you think you know better.
 

rootforme

Well-Known Member
You need more AC power using 115v to get the get the same amount of DC power as you would using 230v, to the tune of about 4% difference. Problem with your argument is that facts are on my side, and you haven't considered all variables in your limited equations. AKA, my math is better than yours. Simple. Ask any electrical engineer. You won't because you think you know better.
No you don't need more AC power you're just having less loss at 2:30 V we're using the same power just you have less loss so you think you have more power but you don't have more power you just have less loss.

And again the reason you have less loss is because a 230 V line has a lower gauge wire which means it has less heat which means it has less loss which means you're 230 V lamp ends up being able to convert better to DC. But either way we're both using the same amount of AC wattage. Either way our bill is going to remain the same.
 
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