PerroVerde
Well-Known Member
8 ) 3590's 2 ) HLG 120 1050's would give you a cob per square foot and at 61% efficiency a PPDF of 1,024. Not the cheapest route but legit for 300 watts... 

That setup sounds a lot better and cheaper lol. I'll prob add two in later I was gonna run 8 3500k then I'll add in 2 or 3 4000k after a grow or two
Running all 8 CoB's on drives each CoB at 50W = 400W per panel. A lot of light and CoB's are running nice and cool and last for five years. Buy a backup driver and keep it ready, if that helps. More CoB's running at lower wattage is more efficient and plants like it too.I wouldn't. 2 drivers would be far less voltage running through each which makes things safer to work with. If you have 2 drivers and one goes down, at least you've still got light in your grow space until you replace the other. Having 2 drivers also gives you more flexibility as in, you might only want one set of cobs on during veg or you can take one set of lights and move them to another area. Can't do that when everything is hooked up to one driver.
There are three drivers you can use immediately. The HLG-185H series . Look at the C700, C1050 and C1400, The C700 will run your 36v Cob's at 350-700 mA running at the 64% efficiency. Using the C1050 you can run between 500-1050 mA. for 56% efficiency, or you can use the C1400 for 700-1400 mA for 46% efficiency. I am using the C1400. The C1400 can drive four Cob's 71v-143V. it takes two drivers to run 8 Cob's either way with any of the 185H drivers. You can use higher rated rivers such as the HLG-240H-C1750 or the HLG-240H- 2100 both provide higher amps to drive your Cob's harder. The C700 drives them the softest, and the C1400 drives them harder. The C1750-C2100 will drive them hardest. Soft indicates cooler temps, and harder indicates higher temps. I hope this helps. peace. I like t use 18 gauge solid core,a s it delivers amps best. I also use braided for remote wiring of drivers and power supply's.
It was my understanding, that the simple glass lens, is best suited as it keeps moisture away from the cob itself. Dude, your build is literally everything I've been trying to figure out for myself. I'm going to be building pretty much the same setup once I get that cashflow right. I'm following this thread so I can keep up with its progress n whatnot.
That's great.So trying to find wire to wire my cobs I picked up some 18 gauge stranded wire rated for 300v will that work or should I use something different
You could probably do 2 on each one so you'd need 3. 6"wide x 12"long.Would running 6 3590 on a 6 inch rapid LED heat sink be too hot with the 185-700?
BTW those enclosures they sell are so awesome lookinsorry 6 x 12
BTW those enclosures they sell are so awesome lookin
I don't know the equation well. Ask someone like @Rahz or @Growmau5 or @REALSTYLESdefinitely wanted 4 not 2 so that kind of sucks!!
By the way, 4 cobs on that small of a heatsink would be a waste of spread. 2 per would be better. You MIGHT be able to do 4 on the 20" model.It looks good and is build pretty well looking for a cheap veg light until more funds are available