Quote Originally Posted by Completely Stoned
More light = More bud.
Usually. 99.9% of the time, this is the case.

BUT!

I have personally seen an example of a plant receiving "too much light"(?). Guy had a single plant under a 1000W HPS in a small room, mylared to hell, and it "bleached". So much light that chlorophyl production was severely retarded(?), and plant looked pale yellow - straw coloured - in normal light. Still grew and yielded, but not much.

There may have been other factors involved, but when I saw it, temp & humidity were OK, and everything else looked OK.

So yes, I believe it's possible to have too much light.