You can put a Current-Regulator on every LED-Chip if You want to go to all the complexity required,
and that would provide the best protection and control,
and eliminate any benefit from the Resistors.
I'm guessing that each 3-LED-Chip will need ~500ma, and may survive as high as ~750ma.,
You have a lot of Chips ........ 500ma, X 4 = 2-Amps,
You need to make sure that your Current-Regulators can easily
supply the amount of Current that will be needed.
.
.
.
and that would provide the best protection and control,
and eliminate any benefit from the Resistors.
I'm guessing that each 3-LED-Chip will need ~500ma, and may survive as high as ~750ma.,
You have a lot of Chips ........ 500ma, X 4 = 2-Amps,
You need to make sure that your Current-Regulators can easily
supply the amount of Current that will be needed.
.
.
.