This isn't my first build, I've done 6 panels already with no problems whatsoever.
Equipment is 12x CXB3590 CD bin , 3x MW HLG-185H-C1400B drivers, 3x 38" 5.886" heatsink from heatsinkuSA . All the cords/wiring, soldering, methods and execution were exactly the same on these 3 newest as the 6...