Quote Originally Posted by BigBlock
The color of the light has nothing to do with it, the heat output remains the same.
The color of the light has EVERYTHING to do with it. The heat output is much less, because you are using less LEDs, while retaining the same amount of ABSORBABLE light output.

For example, the plant will absorb the SAME amount of light from 300 watts of white LEDs as it will from 45 watts of blue LEDs. (numbers are made up to make the point).

Read the article (a working link is posted earlier in this thread) and read Crispy's last posts again, and if you still dont understand, well then I give up.

My reading comprehension is fine, thanks.

peace man.