Even w/o heat issues, is there such a thing as too much light?

I just got the smallest growlab chamber as a replacement for my DIY CFL rubbermaid growbox. Also got a 150 W HPS and damn is that thing an improvement. I also have 2 42 W 6400K CFL's hanging to give it a little blue light as I heard a mix is best.

So that 16000 lumens from the HPS, 2600 Lumens from each CFL, that's over 20,000 lumens in a 1.5x1.5 foot area with just one plant. It's not hot in there or anything so heat isn't an issue but can there ever be just too much light for a plant? I feel like maybe if there is such a thing, 21200 lumens in a 2.25 sq ft area isn't enough to make that an issue.

What do you guys think? Am I actually giving an MJ plant too much light?

I say no,

You are using double the light for square foot area (going by jorge cervantes) and i had asked this question before and i always get the same answer (no theres no such thing as to much light)

Quote:

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Originally Posted by superskunk1

I say no,

You are using double the light for square foot area (going by jorge cervantes) and i had asked this question before and i always get the same answer (no theres no such thing as to much light)

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Actually, there is.

About 91k. Lux is too much light for canabis.
About what we get near the equator around noon.
They actually quit growing and siesta for a couple hours.
Uphill of 92K Lux Cannabis leaves will "light bleach", then die.
I've bleached a few with high power leds, but never with cfls

You're fine, SM.
Gotta watch the heat from the HPS, but the CFLs aren't overkill. :cool:
They should help keep the internodes distance short and counter-act the HPS stretch.
Think I'll hang around and watch this one.

Aloha,
Weezard

Good to know thanks Weezard, i dont think i will ever run into that problem.

I try to have atleast 2 ladies just in case

:jointsmile:

Too much light and too much bud go hand in hand. If you for some weird reason want less bud, go with less light.