mr. Amsterdam
Well-Known Member
Yes at 1050ma they are 34.7v and at 700ma they are 33.6vYes, aren't these CLU48-1212's 34.6 Forward Voltage?
Yes at 1050ma they are 34.7v and at 700ma they are 33.6vYes, aren't these CLU48-1212's 34.6 Forward Voltage?
If you're concerned about your diffusion pattern and your budget, you should know two things;I am not working with LED's yet, but when the time is there I do want to try.
Thinking about a small set up first.
Being a bit autistic about 'nice spread" I thought about getting (9) CXB3590 on (1) MeanWell HLG 185H C700.
In 3 rows of 3.
According to the list on page 1 of this topic this particular driver is suitable for a maximum of (8.7) CXB3590.
But Supra somewhere stated this:
"The driver behaves normal right up until its max voltage.
Once you exceed that voltage, the driver will automatically reduce current until the Vf matches the drivers maximum.
So if you go a few volts above that maximum, the driver will have to drastically reduce current to match the voltage."
And GrowMau5 in a PM told me:
"If you run (8 ) CXB3590 on (1) MeanWell HLG 185H C700, there is a little bit of Fv left, so the driver puts out 104-108% of max current.
9 cobs and current is reduced to around 600ma.
It's is a 200 watt driver. It wants to put out 200w, put cant break the laws of physics ( Watt's Law)
Volts x Amps = Watts
So it compensates. To a degree."
So it is possible to run 9.
My question:
Is there someone here who runs (9) CXB3590 on (1) MeanWell HLG 185H C700 ?
Or any other thoughts on this?
I use lenses and I'm very happy indeed with the results.Thanks!
Leaving out the centre one make sense.
Also the pushing the drivers to the limits.
I will save money on the lenses anyway, because I have no intentions of using them.
Or is it better to have multiple drivers for better efficiency?Is it power efficient to run 1 driver for 8 3590 72 volt cobbs? if so what type of driver?
With the dimmable Meanwell drivers you will need at least 2x CX3590 to be inside the driver voltage range. If you go for the HLG-120H-C1400B you can run 2-3 COBS, and with HLG-185H-C1400B you could run 2-4 COBS I believe. You can get smaller Meanwell drivers that will run a single COB but they are not dimmable I believe.Ok if that wont work what would you suggest as far as a driver for just 1 or 2 3590s? What would be a good driver for just the one or two? What would be a good one that leaves room for adding more? Sorry about all the questions man theres just so much info and options and numbers. Ive tried watching a couple videos and reading alot of other threads but I just dont understand any of it. So any info is greatly appreciated as Im getting ready to pull the trigger and buy. I wish I could find a cree diy led for $200 or even $250. Ive seen a couple but the cheapest cree is $399.
DO you already have these chips? If so, get this driver for every four chips;If I have two sets of 8 cxb 3590 36v, which driver should I pick if I only want to use 2 drivers? I'm in a 4x4
Perfect.Hey grodank I know a HLG-185H-C1400B can power 4 3590's at 36v. This thread has alot of good info. Page 1 has a chart that shows how many 3590s you can run on each driver it helped me alot. Peace
You want the Meanwell B model drivers with external dimming leads, but not for the reason you might think; if you leave them capped off, the driver runs at 8% over its maximum rated current! This way, your COB LED chips get 54W each instead of 50, this adds more light.With the dimmable Meanwell drivers you will need at least 2x CX3590 to be inside the driver voltage range. If you go for the HLG-120H-C1400B you can run 2-3 COBS, and with HLG-185H-C1400B you could run 2-4 COBS I believe. You can get smaller Meanwell drivers that will run a single COB but they are not dimmable I believe.