LED Efficiency?

[heckler73]

EQE is the external quantum efficiency. That is the magic number...As one can see amongst the nitride group, the efficiency drops off in a hurry, except when "acceptor doping" is applied (in this case, I believe it was Mg as dopant). Tradeoff? A little off the front, but extensions out the back! It's like a semiconductor mullet.

 

[orangesabc123]

Here is an example build for your space:
(4) CXB1816 3K Q2 $52 (also available in 4K)
(2) 280mA, 80V drivers $6

Each CXB1816 would dissipate 10W @ 50% efficiency. That would give you 13.3 PAR W/ft² or 665 PPFD average, an average yield might be 1.5 zips each cycle. Driver efficiency 89-90%. The only downside, wondering how long those drivers would take to get here?
View attachment 3408603


You could get even higher efficiency if you are focused on heat OR you could get it done cheaper using Veros if you are trying to minimize cost.
6) Vero10 4K $26
(3)280mA, 80V drivers $6

Each Vero10 would dissipate 7W @ 41% efficiency. That would give you 11.5 PAR W/ft² or 568 PPFD average.
View attachment 3408591

Thanks, this might be the only useful answer. ^^

Curious though, isn't 80 volts stupidly high? Does that driver even run at 80 volts? It says it's 300mA and 40-75volts output? Does that mean you can adjust the drivers voltage? Or does voltage just fluctuate with amperage?

 

[AquariusPanta]

Thanks, this might be the only useful answer. ^^

?

Might?!

Dude, LOL, fuck off!

 

[Positivity]

Yea..i figured this one out quickly.

I'm getting good at figuring out whos worth a millisecond of my time.

 

[orangesabc123]

Might?!

Dude, LOL, fuck off!

Sorries.

Your posts really didn't add anything and they were mildly insulting.

I know that LEDS can only handle a certain amount of current, I know that it's best to not be on one of the extremes. I know that lower current = greater efficiency and higher = greater light output.

The question was how I could adjust said variables to provide the most favorable outcome. For example, low amps and high volts, low volts and high amps. Most bulbs you just plug them in and they go, this is not the case with LEDS and it's not exactly intuitive where you should be on the spectrum.

#learningasIgo

 

[orangesabc123]

Current is function of voltage.
View attachment 3408628
The softer and cooler you run LEDs the more efficient they are. Simple as that.

Thanks, I wasn't sure if they could be adjusted independently or were functions of each other. ^^

 

[Positivity]

I think a new game is in order...,

Who can spot the full of shit people trying to cause trouble...

Game on...

 

[medicinehuman]

LED's are a constant learning game and some just don't get it. Mine are all plug and play when I get done with them.

 

[Positivity]

Sometimes my intuition is wrong... Usually not though.

Peeps be trying to turn easy into hard. Trying to add confusion to something simple. Trying to redirect good information to useless information.

Time to clear the air of the pollution

 

[orangesabc123]

Sometimes my intuition is wrong... Usually not though.

Peeps be trying to turn easy into hard. Trying to add confusion to something simple. Trying to redirect good information to useless information.

Time to clear the air of the pollution

You should probably change your username, positivity doesn't quite suit you.

You take time out of your busy day to post on threads you aren't contributing to, just to act like a douchebag.

Last time I checked LEDS are far from figured out, spectrums, efficiency comparisons, assembly questions...that's pretty much what this sub-forum is for. I'm sorry if my lack of an electrical engineering degree has disturbed you, please refrain from posting in my threads if you have no interest in being on topic or even pleasant.

#Passiveaggressive

 

[Positivity]

You should probably change your username, positivity doesn't quite suit you.

You take time out of your busy day to post on threads you aren't contributing to, just to act like a douchebag.

Last time I checked LEDS are far from figured out, spectrums, efficiency comparisons, assembly questions...that's pretty much what this sub-forum is for. I'm sorry if my lack of an electrical engineering degree has disturbed you, please refrain from posting in my threads if you have no interest in being on topic or even pleasant.

#Passiveaggressive

Sorry buddy but homie don't play that. You have been nothing but rude

You act like a noobie but are digging for advanced answers. What have you contributed here? Nothing?

I am positive.its always my goal. But i keep it real.

#positivityunfiltered
#hello

 

[Positivity]

61 messages and member since april.

Little early to be aggressive no?

 

[orangesabc123]

Sorry buddy but homie don't play that. You have been nothing but rude

You act like a noobie but are digging for advanced answers. What have you contributed here? Nothing?

I am positive.its always my goal. But i keep it real.

#positivityunfiltered
#hello

This is a thread where I am asking a question I don't know....because I am a newbie. How could I possibly contribute to a topic I am clueless on?

If you check my posts in the other subforums you will see that I do indeed try to answer others questions in topics where I am informed.

You on the other hand are going out of your way to be the exact opposite of positive.

#Keepitreal

 

[Positivity]

#stealmyline

 

[AquariusPanta]

Sorry buddy but homie don't play that.

#positivityunfiltered
#hello

Lmao! I haven't laughed this hard all morning!

 

[bicit]

This is a thread where I am asking a question I don't know....because I am a newbie. How could I possibly contribute to a topic I am clueless on?

If you check my posts in the other subforums you will see that I do indeed try to answer others questions in topics where I am informed.

You on the other hand are going out of your way to be the exact opposite of positive.

#Keepitreal

#rude
#ignorestickies
#mtmolehill