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Cfl/300w Led Scrog

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Cfl/300w Led Scrog

Snakeskins Aug 6, 2017 33 Replies 5,010 Views
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Snakeskins

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#1
So I'm looking for varying opinions on how close these lights should be. The cfls(ranging from 23w-45w bulbs) put out 260 watts total. There has been some debate by myself and others with more experience about how close these lights should be to the sprouts. Myself, I think they should be closer while others are telling me to move them an entire 1'-3' away. Please share your opinions.
 

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Snakeskins

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#2
EDIT: I'll be posting and updating pictures mainly here on my first Scrog. They're all the same mystery strain from the same outdoor plant non-feminized, and completely wild. The sprouts will spend about 4 more weeks with only CFLs then on to my tent for 300w LED flower/SCROG cycle. I'll be receiving help mainly from Event Horizan and a few other very experienced members. Please follow up on this and share your opinions about CFL distance and anything else.
 
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indicabush

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#3
My opinion would be as close as the plants could tolerate (CFL's).
 
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Snakeskins

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#4
indicabush said:
My opinion would be as close as the plants could tolerate (CFL's).
Click to expand...
That was my exact thought. Glad someone agrees with me. Many others say Im stunting their growth.
 
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Snakeskins

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#5
The lights are around 6-7" away now and I really think that is enough.
 
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indicabush

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#6
Snakeskins said:
That was my exact thought. Glad someone agrees with me. Many others say Im stunting their growth.
Click to expand...

Grew with CFL's for many years and never found that to be true...but who knows now-a-days.
 
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Snakeskins

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#7
indicabush said:
Grew with CFL's for many years and never found that to be true...but who knows now-a-days.
Click to expand...
Ever done a Scrog with CFLs?
 
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indicabush

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#8
No never tried...
 
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Smerb

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#9
Snakeskins said:
So I'm looking for varying opinions on how close these lights should be. The cfls(ranging from 23w-45w bulbs) put out 260 watts total. There has been some debate by myself and others with more experience about how close these lights should be to the sprouts. Myself, I think they should be closer while others are telling me to move them an entire 1'-3' away. Please share your opinions.
Click to expand...
Close as can be. The best way to tell if the plant will be ok is to leave your hand under that light, if it's hot, the plant will be hot. No heat no issues. Keep growing.
 
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Farmer P

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#10
Cool little setup. I agree as close as you can get the lights without burning your plants.
 
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Snakeskins

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#11
Farmer P said:
Cool little setup. I agree as close as you can get the lights without burning your plants.
Click to expand...
Thx very much. It just needed to be done given that I have a flowering plant on the way to harvest. The real heros of this operation will be my 300w LED and my grow tent (36"×20"×63").
 
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Snakeskins

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#12
On my last grow, I grew only 1 female out of 5 plants with CFLs. I'm currently waiting on the remaining female to finish her flowering cycle with LEDs in the tent.
 

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EventHorizan

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#13
Thejoeybrown said:
Sounds like a productive night
Click to expand...


indicabush said:
My opinion would be as close as the plants could tolerate (CFL's).
Click to expand...

indicabush said:
Grew with CFL's for many years and never found that to be true...but who knows now-a-days.
Click to expand...

Smerb said:
Close as can be. The best way to tell if the plant will be ok is to leave your hand under that light, if it's hot, the plant will be hot. No heat no issues. Keep growing.
Click to expand...

Farmer P said:
Cool little setup. I agree as close as you can get the lights without burning your plants.
Click to expand...


Remember Im all of your buddies, so no ill feelings, just my 2 cents homies.................................



Im gonna ask you all,,
with all due respect,
does them plants look all right?

I know a few of you guys got some skill and knowledge,
do they not look heat stroked, dehydrated, and in need of a cooler environment?
Now most of you said, in your defense,
as close as the plants can handle it.

So technically your answer is correct..
But i reiterate,
do them plants look healthy?
Does the leaves look like normal growth?
Does the node spacing look normal?

Of course it dont.
We all can see that.
So why?

When plants are unhealthy,
its because
A. lack of water
b. lack of light
c. lack of photosynthesis

Those plants are no bigger than my clones.
How much light do you think those tiny leaves can utilize?

Lets jump to another point.
If he had a lack of light,
what would be the symptoms?
Elongating of the stem.
Agreed?

Do we see that?
NO,
as a matter a fact we see the opposite.
which is called miniaturization.
Which is when the leaves are bombarded with to much light, to low relative humidity,
and because of the vpd factor in transpiration,the stomatas close and restrict the leaves from losing moisture in self defense of the heat stress.. When that happens, plants quit photosynthesizing..
Esp the top of the plant under the lights because the leaves have worked too hard and/or too long from the light being too close. The leaves aren't able to keep up with regular plant processes.
Imagine sitting outside all day under a scorching sun, possibly for days on end. Even if you could handle it for a day or two, it might wear you down over days or weeks. That is what is happening here..

I know the taboo is cfl's ,,
get them close...
Lets talk about that for a min...

When we look at a light, say leds,
and we look at the foot print,
we get 2 different numbers..
We may get 4x4 in veg,
and 3x3 in flower...
Simply because a plant in veg doesn't need near as much as a plant in flower to
PRODUCE COLAS..
Colas are a big resinous factory,
requiring tons of everything,
but veg plants require less of everything...
\
So in flower, being just lil cfl's we want them close as we can with out causing heat stress and light burn,
but in veg, we need them up,
so the plants will stretch to them..
He has 260 watts of light. Ive felt a 47 watts or whatever cfl,
there hot!
Imagine 260 watts of that 6 inches away..
Fuck might as well put them in an oven!

Now if we take what we know about heat, and dehueys,
we know that they heat up the air around it,
to reduce the rh...
So does the heat from the light!
So you cause 2 problems simultaneously,
that effects transpiration,
the super highway for c02 to enter the stomata,
so you can have photosynthesis...

So now we are hot as hell, dry as hell, and very lil uptake of c02...

I guess its just my opinion, but my pappy told me
Son when you think your right,
you say so,
even if you got to do it alone....

So I disagree with everybody here so far...
Back the lights off...
when they are bigger than my recently rooted clones then you can put them closer...
In flower is where you will need every lil watt.............
 
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Thejoeybrown

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#14
EventHorizan said:
Remember Im all of your buddies, so no ill feelings, just my 2 cents homies.................................



Im gonna ask you all,,
with all due respect,
does them plants look all right?

I know a few of you guys got some skill and knowledge,
do they not look heat stroked, dehydrated, and in need of a cooler environment?
Now most of you said, in your defense,
as close as the plants can handle it.

So technically your answer is correct..
But i reiterate,
do them plants look healthy?
Does the leaves look like normal growth?
Does the node spacing look normal?

Of course it dont.
We all can see that.
So why?

When plants are unhealthy,
its because
A. lack of water
b. lack of light
c. lack of photosynthesis

Those plants are no bigger than my clones.
How much light do you think those tiny leaves can utilize?

Lets jump to another point.
If he had a lack of light,
what would be the symptoms?
Elongating of the stem.
Agreed?

Do we see that?
NO,
as a matter a fact we see the opposite.
which is called miniaturization.
Which is when the leaves are bombarded with to much light, to low relative humidity,
and because of the vpd factor in transpiration,the stomatas close and restrict the leaves from losing moisture in self defense of the heat stress.. When that happens, plants quit photosynthesizing..
Esp the top of the plant under the lights because the leaves have worked too hard and/or too long from the light being too close. The leaves aren't able to keep up with regular plant processes.
Imagine sitting outside all day under a scorching sun, possibly for days on end. Even if you could handle it for a day or two, it might wear you down over days or weeks. That is what is happening here..

I know the taboo is cfl's ,,
get them close...
Lets talk about that for a min...

When we look at a light, say leds,
and we look at the foot print,
we get 2 different numbers..
We may get 4x4 in veg,
and 3x3 in flower...
Simply because a plant in veg doesn't need near as much as a plant in flower to
PRODUCE COLAS..
Colas are a big resinous factory,
requiring tons of everything,
but veg plants require less of everything...
\
So in flower, being just lil cfl's we want them close as we can with out causing heat stress and light burn,
but in veg, we need them up,
so the plants will stretch to them..
He has 260 watts of light. Ive felt a 47 watts or whatever cfl,
there hot!
Imagine 260 watts of that 6 inches away..
Fuck might as well put them in an oven!

Now if we take what we know about heat, and dehueys,
we know that they heat up the air around it,
to reduce the rh...
So does the heat from the light!
So you cause 2 problems simultaneously,
that effects transpiration,
the super highway for c02 to enter the stomata,
so you can have photosynthesis...

So now we are hot as hell, dry as hell, and very lil uptake of c02...

I guess its just my opinion, but my pappy told me
Son when you think your right,
you say so,
even if you got to do it alone....

So I disagree with everybody here so far...
Back the lights off...
when they are bigger than my recently rooted clones then you can put them closer...
In flower is where you will need every lil watt.............
Click to expand...
I agree with ya bro. I got caught in the quotes. Hahaha.
 
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EventHorizan

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#15
Thejoeybrown said:
I agree with ya bro. I got caught in the quotes. Hahaha.
Click to expand...
My bad I had you for a quote on another thread, and you got hemmed up too..
Lmao my bad homie!
 
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Snakeskins

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#16
EventHorizan said:
Remember Im all of your buddies, so no ill feelings, just my 2 cents homies.................................



Im gonna ask you all,,
with all due respect,
does them plants look all right?

I know a few of you guys got some skill and knowledge,
do they not look heat stroked, dehydrated, and in need of a cooler environment?
Now most of you said, in your defense,
as close as the plants can handle it.

So technically your answer is correct..
But i reiterate,
do them plants look healthy?
Does the leaves look like normal growth?
Does the node spacing look normal?

Of course it dont.
We all can see that.
So why?

When plants are unhealthy,
its because
A. lack of water
b. lack of light
c. lack of photosynthesis

Those plants are no bigger than my clones.
How much light do you think those tiny leaves can utilize?

Lets jump to another point.
If he had a lack of light,
what would be the symptoms?
Elongating of the stem.
Agreed?

Do we see that?
NO,
as a matter a fact we see the opposite.
which is called miniaturization.
Which is when the leaves are bombarded with to much light, to low relative humidity,
and because of the vpd factor in transpiration,the stomatas close and restrict the leaves from losing moisture in self defense of the heat stress.. When that happens, plants quit photosynthesizing..
Esp the top of the plant under the lights because the leaves have worked too hard and/or too long from the light being too close. The leaves aren't able to keep up with regular plant processes.
Imagine sitting outside all day under a scorching sun, possibly for days on end. Even if you could handle it for a day or two, it might wear you down over days or weeks. That is what is happening here..

I know the taboo is cfl's ,,
get them close...
Lets talk about that for a min...

When we look at a light, say leds,
and we look at the foot print,
we get 2 different numbers..
We may get 4x4 in veg,
and 3x3 in flower...
Simply because a plant in veg doesn't need near as much as a plant in flower to
PRODUCE COLAS..
Colas are a big resinous factory,
requiring tons of everything,
but veg plants require less of everything...
\
So in flower, being just lil cfl's we want them close as we can with out causing heat stress and light burn,
but in veg, we need them up,
so the plants will stretch to them..
He has 260 watts of light. Ive felt a 47 watts or whatever cfl,
there hot!
Imagine 260 watts of that 6 inches away..
Fuck might as well put them in an oven!

Now if we take what we know about heat, and dehueys,
we know that they heat up the air around it,
to reduce the rh...
So does the heat from the light!
So you cause 2 problems simultaneously,
that effects transpiration,
the super highway for c02 to enter the stomata,
so you can have photosynthesis...

So now we are hot as hell, dry as hell, and very lil uptake of c02...

I guess its just my opinion, but my pappy told me
Son when you think your right,
you say so,
even if you got to do it alone....

So I disagree with everybody here so far...
Back the lights off...
when they are bigger than my recently rooted clones then you can put them closer...
In flower is where you will need every lil watt.............
Click to expand...
Sigh... a foot you say?
 
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Snakeskins

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#17
How's that then?
 

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Snakeskins

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#18
That temperature will soon rise as I had just turned on the temperature/humidity monitor.
 
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EventHorizan

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#19
Snakeskins said:
Sigh... a foot you say?
Click to expand...
At least...
I say 2 foot for a week, and lets see how they grow.
And let them stretch a lil,
and build a good root structure to push water/feed at them leaves and buds because then we will need them close and we need the roots established so they can do there part!

I got 2 - 3' plants under (3) 53 watt t5s...
One of my leaves has more leaf light absorbing material than your whole plant..

As small as it is, we could prob keep it alive with a led flashlight!

Im waiting to see some others chime in on this for your benefit.
Because I know your having a hard time with this...
 
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EventHorizan

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#20
Snakeskins said:
How's that then?
Click to expand...
idk if that is high enough but the plants will tell us in 24 hrs...
Send me another pic tomm night before you water them
 
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