• Here is a link to the full explanation: https://rollitup.org/t/welcome-back-did-you-try-turning-it-off-and-on-again.1104810/

Can you just add up the amount of light?

greasemonkeymann

Well-Known Member
Actually if he is going to be flowering with CFL then 2700K IS the correct spectrum. With K color temps, lower is redder and higher is bluer, and since you want more red during flower 2700K is the way to go. You may want to keep a few 6500K for the extra UV-B, but the effect might be negligible.
you are right, my bad, I was looking at a different chart, not in kelvin
 
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