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putt28
05-18-2009, 03:15 AM
i have a 21" wide by 4ft tall cab i made. will 10 26 watt(6500k) cfls (16000 lumens)be enough light for 4 plants in 3gal square buckets im using ffof for soil and how many (2600k) will i need to flower for that space sorry no pics...and is this the best soil i can buy?

headshake
05-18-2009, 03:52 AM
is this a 3 dimensional cabinet?

if it's 21" x 21" then 21/12" = 1.75 x 2 = 3.5 x 5000 = 17500 lumens

or in english you have 3.5 sq ft. you want a minimum of 5000 lumens per. so you'll want 17500 lumens, or about 11 bulbs. those are gonna run at *1600* lumens, not 16,000!

you'll want at least the same of *2700*K bulbs for flower. the more the better!

you'll be able to grow some nice plants.

i can't speak on the fox farm soil, as i have never used it. i'm sure it will do fine. i use miracle grow and don't have problems. more money doesn't always need more better.

make sure you have a way to test yoru pH. that is way more important than what type of soil you buy (for the most part).


-shake

Italiano715
05-18-2009, 03:53 AM
is this a 3 dimensional cabinet?

if it's 21" x 21" then 21/12" = 1.75 x 2 = 3.5 x 5000 = 17500 lumens

or in english you have 3.5 sq ft. you want a minimum of 5000 lumens per. so you'll want 17500 lumens, or about 11 bulbs. those are gonna run at *1600* lumens, not 16,000!

you'll want at least the same of *2700*K bulbs for flower. the more the better!

you'll be able to grow some nice plants.

i can't speak on the fox farm soil, as i have never used it. i'm sure it will do fine. i use miracle grow and don't have problems. more money doesn't always need more better.

make sure you have a way to test yoru pH. that is way more important than what type of soil you buy (for the most part).


-shake

AHHHHH I searched everywhere for the equation and couldn't find it so I gave up!! LoL glad you answered cause I couldn't!

P.S. 5000 Lumens per is for optimal growth, I think it's 3000 that is the minimum, but I could be wrong.....

headshake
05-18-2009, 03:58 AM
no worries italiano! it you have inches, divide by 12. multiply length times width = sq feet.
and remember 5000 lumens per. and that's all you have to remember. lol!


-shake

putt28
05-18-2009, 04:02 AM
AHHHHH I searched everywhere for the equation and couldn't find it so I gave up!! LoL glad you answered cause I couldn't!

P.S. 5000 Lumens per is for optimal growth, I think it's 3000 that is the minimum, but I could be wrong.....

thank alot but it is three dimensional its 4ft tall and 21" wide all around