Is 5000 Fluorescent lumens be enough for six seedlings/clones?

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Spinoza420

Active Member
Will 5000 lumens from three t4 20" and two 18" flourescents be enough for a small seedling/clone box? I will be only using it for six seedlings/clones and the box is only like one foot wide one foot long and 3 feet tall but the seedlings are propped up closer to the lights.

Also I will only be keeping the seedlings/clones in this box for three weeks before moving them into the veg room. Is there enough lumens (5000) to support six seedlings/clones for three weeks?
 
Toking Tide

Toking Tide

Well-Known Member
you will be ok with the light but thats a pretty small box. also the light will not get you too far but like you said it's only for 3 weeks.
 
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drock101

Well-Known Member
10,000 for flowering
i think youd be very happy w/ somewhere between 6-8000 for 6-plant veg... depending on how tall you want them to be.... taller they get the further the lower leaves get from any usable light, especially w/ floro....... keep the floros damn near touching the tops of your plants from veging through flower
 
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drock101

Well-Known Member
let me re-write that last post
in Jorge Cervanted Growers Bible is has a chart saying this:

Maximum light requirements for plants

seedling 375 foot-candles 16-24hrs of light
clone 375 foot candles 18-24
vegetative 2500 foot candles 18
flowering 10,000 foot candles 12

*these guidlines will give plants all the light they need to form dense buds.
less light will often cause looser, less compact buds to form
*one lumen is = the amount of light emitted by one candle that falls
on 1sq/ft of surface 1 foot away.

That is word for word from the book
 
MajoR_TokE

MajoR_TokE

Well-Known Member
Technology has advanced so much in the last 15 years that we are constantly refining the process and updating what we know works best for growing. Current theory holds that the minimum amount of lighting needed to sustain growth is around 2,000 lumens per square foot. Mid range is around 5,000 lumens per square foot. Optimal is 7,000 to 7,500 or higher lumens per square foot.
 
Dub-Azn

Dub-Azn

Well-Known Member
drock101 said:
let me re-write that last post
in Jorge Cervanted Growers Bible is has a chart saying this:

Maximum light requirements for plants

seedling 375 foot-candles 16-24hrs of light
clone 375 foot candles 18-24
vegetative 2500 foot candles 18
flowering 10,000 foot candles 12

*these guidlines will give plants all the light they need to form dense buds.
less light will often cause looser, less compact buds to form
*one lumen is = the amount of light emitted by one candle that falls
on 1sq/ft of surface 1 foot away.

That is word for word from the book
Click to expand...
so with that said .... 1 plant in veg cycle needs 2500 lumens ?

 
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Spinoza420

Active Member
drock101 said:
let me re-write that last post
in Jorge Cervanted Growers Bible is has a chart saying this:

Maximum light requirements for plants

seedling 375 foot-candles 16-24hrs of light
clone 375 foot candles 18-24
vegetative 2500 foot candles 18
flowering 10,000 foot candles 12

*these guidlines will give plants all the light they need to form dense buds.
less light will often cause looser, less compact buds to form
*one lumen is = the amount of light emitted by one candle that falls
on 1sq/ft of surface 1 foot away.

That is word for word from the book
Click to expand...
I love that book, i read myself to sleep every night with that thing.... SERIOUSLY!!:mrgreen:
 
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drock101

Well-Known Member
Dub-Azn said:
so with that said .... 1 plant in veg cycle needs 2500 lumens ?
Click to expand...
no not at all
the recommendation you always are hearing about a certain number of lumens needed per plant is really only vital during the flowering stage of growth. During cloning, seedling, vegging and keeping a mother.... they can share alot of the same space and light.
 
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