MH vs LED POWER CONSUMPTION

[tangstank]

This is where my problem/confusion lies. That it consumes that much power doing the stepping down. That driver must be hot as anything, right?

Exactly now. You are getting my point. What we need is efficient drivers, but for all practical purposes we are limited, it will take some more time to come up with efficient drivers to drive LED's.
By the way I bought my kit from Bill (the link you posted as reference).

 

[James77]

Exactly now. You are getting my point. What we need is efficient drivers, but for all practical purposes we are limited, it will take some more time to come up with efficient drivers to drive LED's.
By the way I bought my kit from Bill (the link you posted as reference).

So all these people jumping up and down saying LEDs are saving them all sorts of money are just figuring on the 3 watts the LED uses?

Why does someone like Bill only show 186 watts on the killawatt when he is driving all those LEDS, is he not being billed by the watts drawn?

 

[reefergeorge]

Four blue xpg and two white

 

[reefergeorge]

Power factor

 

[Anemonebuff]

The heat is blown out the side of the fixture. I can put my hand directly under the bulb, outside of the fixture, and it's just slightly warm

That heat you feel also adds heat to the tank. The air blown from the fixture heats the room, and in turn heats the tank. There is no way to make the heat from a bulb burning at a few hundred degrees(300+) just disappear.

 

[Anemonebuff]

Four blue xpg and two white

So much for OHMs law.:spin1:

 

[nanojg]

Hmmmm according to the electrical engineer that should be pulling about 60 watts, that meter must be bad...

 

[Anemonebuff]

Without the driver it might only need 12 watts.

 

[nanojg]

That heat you feel also adds heat to the tank. The air blown from the fixture heats the room, and in turn heats the tank. There is no way to make the heat from a bulb burning at a few hundred degrees(300+) just disappear.

That's funny

 

[Anemonebuff]

http://www.youtube.com/watch?v=SIzCi0kJ7_s

Like this bulb. Their meter must be bad too.

 

[Anemonebuff]

That's funny

I am glad that logic makes you laugh.

 

[Anemonebuff]

Go to post #74 by garage. He has posted his build here plus has commented on other builds as well. He is one of the best LED gurus here:

http://www.reefsanctuary.com/forums...225g-starphire-build-pure-awesomesauce-5.html

 

[Anemonebuff]

http://reefcentral.com/forums/showthread.php?t=1878249&highlight=garage+led+build

 

[nanojg]

I am glad that logic makes you laugh.

The tank is actually in a climate controlled room (I have central heat and ac!!!) so no the light does not heat the tank

 

[Anemonebuff]

Do you think that maybe the central air combats the heat in summer and in winter, I do not know about you but I keep my heat at 68-70, the heat from the bulb just makes the heater run less?

 

[reefergeorge]

This one has two meanwell 700s and runs 24 xpgs total.

 

[nanojg]

This one has two meanwell 700s and runs 24 xpgs total.

Thanks for posting this! Very frustrating that people think those drivers pulled 154 watts!

 

[ForSaleByAndy]

I think all of you are missing the bigger point: Who cares?
People have their favorites and will defend them to the end of time.
The better question is: What do YOU prefer?
If you're in this hobby to "save" a few bucks, you're in the wrong hobby.
This is an ever-evolving industry and if it works for your system and your budget and you're happy with it, then it should be worth it to you, no matter which way you slice it.

 

[nanojg]

Do you think that maybe the central air combats the heat in summer and in winter, I do not know about you but I keep my heat at 68-70, the heat from the bulb just makes the heater run less?

It might be more efficient to allow the heat to reach the tank, but my heater doesn't come on very often. I keep my house at 68-70 pretty much year round when I'm home and 64-80 when I'm away. My tank is kept at 77-78

 

[nanojg]

I think all of you are missing the bigger point: Who cares?
People have their favorites and will defend them to the end of time.
The better question is: What do YOU prefer?
If you're in this hobby to "save" a few bucks, you're in the wrong hobby.
This is an ever-evolving industry and if it works for your system and your budget and you're happy with it, then it should be worth it to you, no matter which way you slice it.

Why would people not want the most efficient light source?