2 Board parallel wiring safety HLG-240h-48B

[Lumpinee]

Hi everyone, its my first time posting here. But it looked like its the best place to ask. So after looking for leds to save on my electricity bills I bought x2 mars pro ii 160(384 true watt) lights what was very disappointing tbh. I almost lost my fate in LED, but found out COBs and Stripe Boards so decided to try Quantum Boards, but their heatsinks were out of stocks all the time so I ordered alibaba 288 board kits.
I am a total noob in diy leds, but watched some of vids (mostly about COBs).
Boards :
Power 52-130w
Voltage 48v
Current 1-2.7a
170-180 l /w

So I got my kit this week assembled it (without a Potentiometer for now)
Everything looks great at first point. Only thing after 40mins on heatsink becomes too hot to keep hand on it so I don't want to use it before Pot comes. Difference from QB is that there are 18 vertical stripes vs 8 horizontal, have no idea if its bad or not
But my main concern is parallel wiring, I'm worried that driver output is 5A what is almost the double of stated current, and in case if one board goes off what going to happen to remaining one? So the question is if it is safe to run it like that or I have to use some resistors or change driver so keep them safe?

And one more question if mounting driver on heatsink technically good decision? Or will it make my heatsink hotter and its better to keep it away?

 

[knight mare]

If one board goes the other will burn out so put a fast blow fuse on the positive side of both boards at the rated max for the board

 

[CobKits]

If one board goes the other will burn out so put a fast blow fuse on the positive side of both boards at the rated max for the board

not necessarily as driver tops out at 48V, but without actually having an actual voltage and current curve for the boards its hard to tell

 

[Moflow]

I bought 2 800 led boards from same place.
Mine 2mm thick , 2oz, 3.0 /w conductivity
Yours 1.6mm thick, 1oz, 1.0 /w conductivity.
I don't have heatsinks and ran a test on back of board temps after n hr n a half and it was a respectable 43oC.
Get a fan blowing on your heatsink and that'll reduce your temps.
Buy a kilowatt meter maybe? They'e cheap .

 

[Lumpinee]

If one board goes the other will burn out so put a fast blow fuse on the positive side of both boards at the rated max for the board

Thanks that sounds easy and understandable for me. I will do it just in case. Could only find 3.15A fuses will still do the job?

not necessarily as driver tops out at 48V, but without actually having an actual voltage and current curve for the boards its hard to tell

Thanks for reply, CobKits. Supplier tells that they won't blow up. Asked for some data sheet, but girl who sold it to me doesn't seem to understand me. She promised to ask their engineers though.

I bought 2 800 led boards from same place.
Mine 2mm thick , 2oz, 3.0 /w conductivity
Yours 1.6mm thick, 1oz, 1.0 /w conductivity.
I don't have heatsinks and ran a test on back of board temps after n hr n a half and it was a respectable 43oC.
Get a fan blowing on your heatsink and that'll reduce your temps.
Buy a kilowatt meter maybe? They'e cheap .

Nice to hear its not only me who decided to give them a go. No info on google about them. So yours not yet tested in grow?
1.0 / 3.0 w conductivity ? Sorry it sounds stupid but can you explain the difference?

 

[Moflow]

Here's the thread about the boards I have

https://www.rollitup.org/t/diy-fotop-grow-board-280x900x2-0mm-l29-52-xw9-18.960546/

 

[Lumpinee]

not necessarily as driver tops out at 48V, but without actually having an actual voltage and current curve for the boards its hard to tell

Is that what's needed mate?
286*174*1.6mm, 1.0/W conductivity, 1OZ, 16s18p, 52-130W,48V,1080-2700mA, 288pcs Samsung 561C AZ s6 leds

 

[CobKits]

you can do the math with the info above using samsung simulator knowing 16s18p