What do I need for my DIY COB??

I think the 240 series goes in different amp increments. 750, 1500,2400,3600,4800,5400

littlejacob said:

Bonjour
Hlg-185-1400b will run 4 cxb3590
1750b 3 and 1050b 5
Hlg-240-1400b 5 cxb3590!
CU

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Can you find for sale this 240-1400b driver?

Airwalker16 said:

Can you find for sale this 240-1400b driver?

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mouser.com should have em. did you ask jerry? he is stocking this later these month apparently. also ask jerry about the 80 cent reflectors if you want them, those are likely the best option to go with.

http://www.mouser.com/Search/m_ProductDetail.aspx?Mean-Well/HLG-240H-12B/&qs=sGAEpiMZZMt5PRBMPTWcadJrg7R/G3Vf2RdISIlzIgA=


Is this right? It's 1200am

http://www.mouser.com/Search/m_ProductDetail.aspx?Mean-Well/HLG-240H-C1400B/&qs=sGAEpiMZZMt5PRBMPTWcac5aDEswMPfpYBYEHAtMo1/hUWrk4tbktg==

I found it!!!!!! But it looks like they don't have any either. They ship to them in a month

Airwalker16 said:

http://www.mouser.com/Search/m_ProductDetail.aspx?Mean-Well/HLG-240H-C1400B/&qs=sGAEpiMZZMt5PRBMPTWcac5aDEswMPfpYBYEHAtMo1/hUWrk4tbktg==

I found it!!!!!! But it looks like they don't have any either. They ship to them in a month

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They have 4 of the 1050ma hlg 240's. I believe that the 1050ma will run 7 36v cobs at 60% efficiency...

They also have 185h-1050b in stock which runs 5.6 so I'd probably end up just going that route. That's pretty close to max efficiency

Airwalker16 said:

They also have 185h-1050b in stock who runs 5.6 so I'd probably end up just going that route. That's pretty close to max efficiency

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Bonjour
It you aim for best efficient set up....30w wq/ft is the way to go...1 cxb3590@1050mA and over each sq/ft
It is what you can grow (1 on 5) under 200w of cxb @1400mA over a 3.5x3.5x4.5 grow box...very nice cobs...i love it!
CU

littlejacob said:

Bonjour
It you aim for best efficient set up....30w wq/ft is the way to go...1 cxb3590@1050mA and over each sq/ft
View attachment 3584054 It is what you can grow (1 on 5) under 200w of cxb @1400mA over a 3.5x3.5x4.5 grow box...very nice cobs...i love it!
CU

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So you have 5cxb3590s running on 1400ma?

Airwalker16 said:

So you have 5cxb3590s running on 1400ma?

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Ok, take the the volts of the cob you are looking at running (most likely 36v) and divide the available volts of your desired driver. The hlg 240 1400ma driver will run 5 Cree 3590 cobs at 50watts each at 56% efficiency...

The hlg 185 1400 will do the same with 4 of the same cobs...

I'm running 2 of the hlg 185 1400 with 8 3500k Cree 3590's (4 each driver) so I know and have seen the combo works...

Ya I'll probably use a 185 1050 for my 5 cxb3590s

What wattage and efficiency is that? And what's the formula to find out wattage and efficiency using max output, fv, and am?

Where'd you get your 185-1400's? Mouser is out.

http://www.onlinecomponents.com/mean-well-hlg185hc1400b.html?p=45327085&utm_source=google&utm_medium=cpc&utm_campaign=Shopping Suppliers&utm_term=&utm_content=F6xHtb5l&ref=GoogleAd:Shopping Suppliers-Mean Well&gclid=Cj0KEQiA5dK0BRCr49qDzILe74UBEiQA_6gA-oQ5DB06c74Kp2lchxwzDv669G5UEssnR7nfghcxkggaAn6H8P8HAQ&cshift_ck=619686C5-E1D4-43B8-A63F-A8E0A3057C5BcsF6xHtb5l

I found one & for really cheap too!

PerroVerde said:

Ok, take the the volts of the cob you are looking at running (most likely 36v) and divide the available volts of your desired driver. The hlg 240 1400ma driver will run 5 Cree 3590 cobs at 50watts each at 56% efficiency...

The hlg 185 1400 will do the same with 4 of the same cobs...

I'm running 2 of the hlg 185 1400 with 8 3500k Cree 3590's (4 each driver) so I know and have seen the combo works...

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So you have both drivers wired to one single wall plug, but would I be able to do 3? I'm deciding to just do 3 fixtures with 4 cobs a piece for 12 total rather than 15 like I originally planned. I'll run mine exactly as you've run yours but no monos and active cooling with just a 120mm cpu fan on top of them all. So I could probably get away with 4 cobs on a 2Ft heatsink rather than your passive 3ft (almost).

Airwalker16 said:

So you have both drivers wired to one single wall plug, but would I be able to do 3? I'm deciding to just do 3 fixtures with 4 cobs a piece for 12 total rather than 15 like I originally planned. I'll run mine exactly as you've run yours but no monos and active cooling with just a 120mm cpu fan on top of them all. So I could probably get away with 4 cobs on a 2Ft heatsink rather than your passive 3ft (almost).

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I have one plug per drive but I picked up a heavy duty 3 to 1 two foot extension that they both plug into. The wires coming off the drivers are on the thick side and it would be rough fitting two much less three into the same plug... I'm glad you found drivers, be sure to get some potentiometers for dimming with the B version of the hlg 185 1400...

I'm setting up a peg board to hang my drivers outside my tent Supra style and find a way to secure the potentiometer/dimming as well...

I looked back over the thread and didn't see the amount of area your looking to light so I will make some assumptions here...

Quick figures put your 12 CXB 3590 COB fixture over 16 square feet at 1400nm, 56% efficiency and .9 wall/reflector loss being a PPFD of 940.36.... Dimming recommended...

PerroVerde said:

I looked back over the thread and didn't see the amount of area your looking to light so I will make some assumptions here...

Quick figures put your 12 CXB 3590 COB fixture over 16 square feet at 1400nm, 56% efficiency and .9 wall/reflector loss being a PPFD of 940.36.... Dimming recommended...

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Ya dimming is definitely something I want. Do I just need to order a 100 ohms knob off amazon or ebay for a couple bucks?
Once I do have it, where do you Install it? I'll watch growmau5's video again to see buy it'd be nice to have it explained if you can.

I would order 3 of them (one for each driver) and they are cheap. There are three prongs/points to connect wires. There will be a two wire lead on the hlg 185 1400B (white and blue) for dimming. White to the center prong, blue to the left prong if your looking at the potentiometer with the connecters/prongs down or facing you.

Oh damn that's simple as hell. I'm trying to find the 100mm lenses that work over top the chip lok holders. Any idea where you get em? Or is jerry the only way?