Single DIY Cree cxb3590 light first grow

Mozalpete

Member
Hi guys, I just joined to the forum and I have a question.

I got a single Cree cxb3590, Angelina-M reflector, LPC-150-2450 driver and old server heatsink with 12v 0.5amp fan on it (I ran the CoB and checked the temperature on the chip outside the phosphor part, it didn't even go over 30° not sure if its right way to check btw).

Then I learned it's more efficient to run multiple CoB's with lower amps but it was too late since I already bought the driver. I'm in a budget as you can see and I wanna do the best with what I got.

Basically wondering if its enough to pull off some quality and dense buds in 65cmx65cmx190cm closet considering everything else is right. And looking for any suggestions to improve my first grow of course.
 

shimbob

Well-Known Member
150watts in a 65x65cm space puts you at 33wsf, it'll do just fine.

On another note, it's not too late to add more cobs to that driver, you could run four cobs in parallel for better spread.
 

Mozalpete

Member
150watts in a 65x65cm space puts you at 33wsf, it'll do just fine.

On another note, it's not too late to add more cobs to that driver, you could run four cobs in parallel for better spread.
LPC-150-2450 supports 31 to 62 volts, so that means it can run only 2 cxb3590's at 31 volts right? I'm just getting into electrical stuff so please excuse me if I'm wrong.
 

shimbob

Well-Known Member
Cxb3590s run at 36v, (unless you have the 72v which won't run at all)
You're thinking of wiring in series, where the voltages accumulate. Parallel wiring is different.

Wired in parallel, you can keep adding more cobs and they will all get 36v but the current will be divided among the cobs.
 
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