Airwalker16
Well-Known Member
I think the 240 series goes in different amp increments. 750, 1500,2400,3600,4800,5400
What do I need for my DIY COB??
- Thread starter Airwalker16
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Airwalker16
Well-Known Member
Can you find for sale this 240-1400b driver?
jewbag
Well-Known Member
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.
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Airwalker16
Well-Known Member
Airwalker16
Well-Known Member
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
I found it!!!!!! But it looks like they don't have any either. They ship to them in a month
PerroVerde
Well-Known Member
They have 4 of the 1050ma hlg 240's. I believe that the 1050ma will run 7 36v cobs at 60% efficiency...
Airwalker16
Well-Known Member
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
littlejacob
Well-Known Member
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
Airwalker16
Well-Known Member
So you have 5cxb3590s running on 1400ma?
PerroVerde
Well-Known Member
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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Airwalker16
Well-Known Member
Ya I'll probably use a 185 1050 for my 5 cxb3590s
Airwalker16
Well-Known Member
What wattage and efficiency is that? And what's the formula to find out wattage and efficiency using max output, fv, and am?
Airwalker16
Well-Known Member
Where'd you get your 185-1400's? Mouser is out.
Airwalker16
Well-Known Member
Airwalker16
Well-Known Member
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).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...
PerroVerde
Well-Known Member
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...
PerroVerde
Well-Known Member
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...
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...
Airwalker16
Well-Known Member
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?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...
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.
PerroVerde
Well-Known Member
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.
Airwalker16
Well-Known Member
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?