CXA3590 Build Plan

bicit

Well-Known Member
What the hell are you trolling me for, if your time is so valuable.

Make a point. WIder sink? More COBs? You really are just barking.
Your sink is fine. Add more cobs and drive them softer. 4 50w lights per driver instead of 2 100w lights
 

Sativied

Well-Known Member
However you should configure it in such a way that it excedes the efficiency of a hps bulb.
Matthew 16:66 - The Holy Bibled :bigjoint:

Why settle for less than you could get out of your expensive components? [...] I mean, that's your prerogative. Just seems like a waste to only get the bare minimum out of your components.
He's just saying it's not the nr 1 concern, which it becomes when you start buying more and more cobs so you can run them lower and more efficient power use. Which yes I agree has several advantages but not everyone is hung up on beating HPS. You say "your expensive components", but to be really efficient it comes down to "more of the same of your expensive components".

At some point it's like suggesting not using the boost feature on an HPS because that 10% extra light is produced less efficient than the rest and then on average decreases the total efficiency.

Anyway, I don't see a problem building a LED lamp that is 'as' efficient as HPS is now (dense nugget yield-wise...) but 5 years Doer?Although by then you can create the same modules a lot cheaper, add more modules closer together, and run them lower yet more efficient.

More COBs?
Yes, and then lower the input current, so they produce less light per cob, but do so more efficiently because it's not linear. Actually in labs test, over 100% efficiency has been achieved. Yeah free energy sort of thing :) http://www.wired.co.uk/news/archive/2012-03/09/230-percent-efficient-leds

That's taking what the led guys here do to the extreme.

And yes that obviously increases that $2.75
 

Doer

Well-Known Member
OK, but it is all a trade off. You doubled your emitter cost and build detail to get the same watts on the ground.

You did that for the long term payback of saving Watts you have to buy.

But, you did not calculate your payback period vs the period until you upgrade emitters.

I do this for a living boys. But, you can figure it yourself.
 

Doer

Well-Known Member
Matthew 16:66 - The Holy Bibled :bigjoint:

He's just saying it's not the nr 1 concern, which it becomes when you start buying more and more cobs so you can run them lower and more efficient power use. Which yes I agree has several advantages but not everyone is hung up on beating HPS. You say "your expensive components", but to be really efficient it comes down to "more of the same of your expensive components".

At some point it's like suggesting not using the boost feature on an HPS because that 10% extra light is produced less efficient than the rest and then on average decreases the total efficiency.

Anyway, I don't see a problem building a LED lamp that is 'as' efficient as HPS is now (dense nugget yield-wise...) but 5 years Doer?Although by then you can create the same modules a lot cheaper, add more modules closer together, and run them lower yet more efficient.

Yes, and then lower the input current, so they produce less light per cob, but do so more efficiently because it's not linear. Actually in labs test, over 100% efficiency has been achieved. Yeah free energy sort of thing :) http://www.wired.co.uk/news/archive/2012-03/09/230-percent-efficient-leds

That's taking what the led guys here do to the extreme.

And yes that obviously increases that $2.75
What do you mean 5 years? How often do you think emitter are worth upgrading just based on Tech advance?
 

Doer

Well-Known Member
If you guys go back and read this, you can see this was my very first trade off.

"I will run them at 100w." Do you really think I didn't know the physics?
 

Positivity

Well-Known Member
100w isn't so bad...especially considering the newest leds out. But 6 months ago it would have just been a heat factory..

Which is why i said cxb...

Doing it with a cxa 3590 ad bin would be kinda useless..
 

Doer

Well-Known Member
100w isn't so bad...especially considering the newest leds out. But 6 months ago it would have just been a heat factory..

Which is why i said cxb...

Doing it with a cxa 3590 ad bin would be kinda useless..
Thank you. You would not try this on a 3050. And 6 months ago I had no interest. :) This 100w is what I'm after.

And I get what you saying about ad bin. IAC, I am pretty much set on the sink and the drivers have the longest lead time. I will probably be ordering those soon.

By the time I get the Air Rail(tm) built and lay out the COBs, and tap, etc, the drivers should be here. By then, I should have a wad of B3590s on the way. Planning for Veg I may as well get them all at once and try for a volume break.

Good helping.
 

nogod_

Well-Known Member
You absolutely do not understand the physics.

Watts in action? You do realize what youre after is photons....not watts right? Watts do not grow plants.

If all you want to do is run up your energy bill to prove that youre king of the chest-beating red-blooded american blowhards, why dont you just build one of these?


You may be an engineer, but when it comes to building an led lamp you are really struggling with pretty simple design principles.

Maybe you just want to get your post count up?

I can get the same watts in action, for a lot less by paying for more AC watts.

If you guys go back and read this, you can see this was my very first trade off.

"I will run them at 100w." Do you really think I didn't know the physics?
 

bicit

Well-Known Member
At some point it's like suggesting not using the boost feature on an HPS because that 10% extra light is produced less efficient than the rest and then on average decreases the total efficiency.
Doesn't the boost feature also cause undesirable spectral shifts in some(all?) lamps? As well as reduced life span? Kinda seems like shooting yourself in the foot overall to boost HID lamps like that.

I don't know much about doing that though. Is it really a worthwhile practice over using 2 600w HID's to accomplish the same task?
 

Sativied

Well-Known Member
OK, but it is all a trade off. You doubled your emitter cost and build detail to get the same watts on the ground.

You did that for the long term payback of saving Watts you have to buy.

But, you did not calculate your payback period vs the period until you upgrade emitters.
Indeed, that's it. The university of Utah tested commercial led and hps lamps to amongst others determine the electric cost average per umol photons over a year and 5 year period, based on the light equipment cost and power usage. With gavita clearly being the best option whether you use it 1 or 5 years.

Obviously not what you want, I get that, but the point is DIY led can be a more cost effective option than those overpriced commercial led lamps used in those tests and can be tuned to run more efficient, and that's really the main thing it has going for it at this point. It's a "trick" to use less electricity and thereby increase the GPW. Some take that to the extreme and don't care about the setup costs (which if stealth is a major factor is not a bad idea at all), others just try to find a balance in that trade off.

Doesn't the boost feature also cause undesirable spectral shifts in some(all?) lamps? As well as reduced life span? Kinda seems like shooting yourself in the foot overall to boost HID lamps like that.
 

Greengenes707

Well-Known Member
It is pretty much impossible to match HPS efficacy with high power LEDs and COBs.

Achieving an equivalent DC flux with LEDs compared to HPSs with its low low CRI is an electrifying concept, especially when you consider the much much improved spectrum you can give your babies :lol:

When the summer sun shines through our atmosphere plants receive the highest CRI light or you could say the least filtered. During winter months is where the the suns rays pass more on an angle with the earth, dropping the CRI to a lower point. I dont know the figures of exactly how much filtering is happening but I do feel plants have adapted to use this at least as a slight trigger to know when to start producing flowers, thus maximizing our beloved THC production bongsmilie
We don't really care about efficacy...EFFICIENCY is what matters.

But led's CAN meet and exceed hps in both categories.


@Doer you should work on understanding what/how led's work and what plants use to photosynthesize. Then you will see that most in here are actually trying to help you build a good lamp.
 
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