Light intensity: Why to keep lights as close as possible

[TheGreenFog]

Good post, Splifted. :thumbsup:

Wanna see an example of what he's talking about? LOL...

Here's one pic, or you can go to the JOURNAL and see more.

This is a 5 foot plant with big buds on top and liiitle buds on the bottom.

LSTing, SCRoGing or just keeping your plants squat helps to reduce this problem.


Also, make sure you keep them (the lights) close in the veg state too to keep them bushy and short, not stretchy like those lanky f**kers in that JOURNAL. .......Still gettin' good buds from it, though! :baggy:

:clap:

:rasta:

TGF



Edit:

I don't get where you got 1 foot as the reference from? The diagram is metric and shows light going down to 25% in the second meter but no change in the first?

Faithless, I think they are just arbitrary #'s to show the formula...right, splifted?

TheGreenFog Reviewed by TheGreenFog on 11-29-2006. Light intensity: Why to keep lights as close as possible Light intenstiy = Total Light Emitted / ((4 x pi) x (radius^2)) And light intensity decreases by 1/x^2 where x is the distance. So like if you have 135,000 lumens at 1 foot, you increase that to 2 ft, you it would be 135,000 x 1/2^2 which is 1/4 so basically one fourth of 135,000 = 33,750. Add one more foot, 135,000 x 1/3^2 = 135,000 x 1/9 = 15,000. Crazy huh? Thats why the top bud always is so big and the bottom ones are smaller, cause they get a lot less light. LST'ing takes that Rating: 5