Hello everyone, as I am new to electronics, I could use some help.
I am planning on running my 288v2 QBs with active cooling. (a fan blowing onto the heat sink)
I read in the 288v2 thread that the 150w max is only for passive cooling and that active cooling increases the heatsink effeciency by a factor of 3.
Does this mean that I could run 2 QB 288v2s with an HLG-480-xxx and run them both at 240w with active cooling? If I do this, should I wire series or parallel?
According to this you can use a hlg-240h-c2100a wired in series (make sure to get the a version to go higher than rated Amps,) to get about 240w max. Or an hlg-240h-48 (a version, or b version with 100k ohm potentiometer for dimming. would give you a little over 240w. Both would run them about 75% of absolute max thenThe max current rating is the same as LM561C.
Honestly max current is 3.2A ... 200ma X 16 strings.
I believe @robincnn is being conservative because most meanwell drivers give a little more current than rated.
I would Definately make sure to monitor the heat with an ir sensor if you want to drive that hard, and have plenty of cooling. I would also opt for the a or b versions of these drivers, just in case it is running to hot you can dial it down.