hi i saw the matrix pl light at aquarama .
they using 12000k pl tubes .... and say they are gd for plants cos its brighter .... and he say that the spectrum is not related to the kelvin .... and say their tube are make for plants ....

from my knowledge plants grow well in 6500k and at 10000k aglae will grow ....
first time saw 12000k tubes
so need the experts here for advise
thanks