medicinehuman
Well-Known Member
That = lots of good stuff growing, you'll be busy.70 cobs now, its a bit big.
That = lots of good stuff growing, you'll be busy.70 cobs now, its a bit big.
Horry chit70 cobs now, its a bit big.
Still waiting on drivers but I will try to run tests to see what I get.I just put (4) CXA3070s in series with a 13V LED (~147Vf), hooked the string up to 4 different 18-36X1W drivers and all 4 drivers were AOK so you should have plenty of headroom with (5) Vero 10s.
22 ga should be OK for short runs although i have not tested it for voltage drop, I use 18 ga for just about everything on the DC side.
Here are the Fasttech 12-18w's open case [Are these the "dark matter" 's?Thats a good question. I am testing the "dark energy" 12-18X1W size. It could drive 3 Vero 10s at 260mA with 89.5% efficiency with headroom to spare (89Vf max), but I cannot figure out where I got this one from. It does not match the picture on Fasttech. It is possible that it came inside an LED fixture.
View attachment 3333218
These would work, $2.41 ea although they are not the dark energy boards. These come with a case for $3.41 ea, or here for $3 ea, and they work work also (max Vf 80). They may put out less current and I am measuring a lower efficiency at high Vf range, 87.5%
Yeah you don't want to hook them up backwards. Hopefully you didn't power it on.I assume these Vero 10 cobs need to be hooked in series positive to negative. So hooking one up backward in a series is no good. ? Or DC so doesn't matter?
im sure it matters as would not have +/-.
hooked one up backwards as glued one on 180* upsidown by mistake.
yep, can't go back and edit either....thanks for the heads up Aqua! @AquariusPanta@Abiqua
I was reading through your most recent post here and I'm not sure your second link was the intended one as it appears to be a duplicate of the first link.
Decent voltage range on em'.
Was going to buy the top link and poked around a bit, just picked up one of these to try out for a veg light.....could run a single CXA3590 for cheap! But they are only "280mA"
Just got these delivered yesterday. I haven't had time to do any real tests, but I did hook one up. Its keeping the heatsink barely above ambient temperature - its a 3070 @ 1.4A. I don't currently have the equipment to hook up 3 fans to a single driver or to be able to test it for efficiency. Hopefully I can get some of that information in the next couple days.Been awhile since I've checked this thread. Nice to see its still going strong a year later.
I stumbled across some interesting drivers that might work well for fans. Thought I'd share:
http://www.ebay.com/itm/261653490178?_trksid=p2060778.m2749.l2649&ssPageName=STRK:MEBIDX:IT
At $1.59 each seems kind of hard to beat and gets away from using multiple wall sockets.
yep....Can i run this - http://www.ebay.com/itm/DC-12V-LED-Driver-Transformer-Constant-Voltage-6W-10W-18W-40W-For-LED-Strip-2014-/121439918711?pt=UK_Home_Garden_Lighting_Parts&var=&hash=item1c46621a77
18W
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So my plan is to run for first two fans at 12V, so 0.4A, so i have still left 1A for future fans, right? if it's constant voltage..