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kingnai
05/08/2010, 10:00 AM
Just installed my new 400w 20k Radium, Went from a 12K Reeflux on a coralview ballast.

Does a 20K bulb actually change the color of a coral or just reveal different colors the coral already has?

woofu
05/08/2010, 10:03 AM
from my experience yes.. also the intensity of the light will be less at 20k.

kingnai
05/08/2010, 10:07 AM
yes it changes the color or yes it reveals or yes to both?

AcroporAddict
05/08/2010, 10:46 AM
I use 400 watt 20K radiums an a CV ballast and it puts out great PAR. If the ballast is dimmable it gets bluer the more you dim it.