Question: What would you guess?

[OldSkool]

Hello all!

This is my first post here so if it's in the wrong place Mods feel free to move to correct spot.

I have a little test for you guys and gals that 'dabble in the dirt'...

I have a crop growing right now that is doing very well.
Genetics: Indica.
Room: 2'x3'x6'tall 11 ga. metal tool cabinet painted flat white inside.
Air movement: 6'' hole in bottom of back wall of cab w/8" fan blowing in.
4" hole in ceiling w/80mm thermistor controlled fan blowing out.
Soil: Miracle Grow moisture control potting soil w/cocoanut fibre w/nutes
at N-.21 P-.07 and K-.14 slow release over time.
Light cycle: 24 hrs on.
Water: wet to dry cycle.
Containers: 6oz clear plastic disposable cups.

Planted 17 hand-select seeds from a friend. 13 sprouted.
Plants sprouted in three days. Are now just 15 days old above ground.
All plants have four sets of leaves with the fifth set sprouting.
First true leaves, single blades.
Second set. triple blades.
Third and fourth sets, five fingered leaves with one having a six-bladed leaf.
Plants are vigorous and stocky. All 13 plants are within the range of 2 1/2 to 3" tall.
Internode length approx. 1/8" to 3/16" apart.

This is by far the most robust grow at this stage I have had in some thirty years of growing.

So, my question to you all is:
What type of lighting system/orientation/wattage/total lumens would it take for this kind of plant response in your experience?
I will provide details of setup, total lumens psf and wattage later after the test!
Be a sport, take a guess!

OldSkool

 

[pcduck]

Most grower strive for 5000 lumens / sqft. You have 5 sqft.

400 watts mh at 30,000 lumens would work for veg.

250 watt hps at 28,000 lumens would work for flower, but I would put a 400 watt hps at 50,000 lumens would be better

 

[OldSkool]

Hi pcduck. Yes it would, and very nicely too.
Except thats not what I'm using!
And I have 6 sq ft total floor space. 2x3=6.

Any more guesses? It's all for fun! :hubba:

OldSkool

 

[OGKushman]

Never did the math on this one...
Ill try it.

144,000 lumens (1kwt HPS) / 16 sq feet (4x4 room).


I am running 9,000 lumens per sq. ft.


You...?

600w HPS in 6 sq feet...?

 

[OldSkool]

Hey Kushman!

9,000 psf! Holy S**T batman! No brother, I'm not running that much.
I'll give you a clue...have another look at my screen name...

 

[pcduck]

Just skip the 250 watt b/c of my bad math. You would need 30,000 lumens for your sq ft at the rate I described earlier. 400's would work in both cases with the 400 mh just making it.


Oldskool you may also want to read our site rules especially #1 :bolt::bong2:

 

[OldSkool]

Oh, you mean the Holy S$$t batman? I put the asterisks in there! Just like I put the dollar signs just now. I read them bro. Thanks for the heads-up tho.

Anyway, i have 8, 4' fluorescents running GE premium 4100k tubes at 3,400 lumens each for a total of 27,600 lumens divided by 6 sq ft. = 4,300 per sq ft.
The lights are screwed to the sides of the cabinet, 4 on the left, 4 on the right. The plants do not turn towards the bulbs but grow straight up towards
the intense light above them. This setup works as well as the intense, high wattage fixtures that cost hundreds of dollars without all the heat.
Anyway thats my setup and it works well for me, has for years.

Thanks for playing!

OldSkool

 

[Hick]

hmmm... "Old School"..? I'm betting he's under 4' flourescent tubes..

 

[Hick]

oops.. posting @ the same time OS. but I didn't see your post pefore postiing my guess.. whatta' I win?.. you said "for fun".. My idea of fun?.. or yours?

 

[blogposter12]

Most grower strive for 5000 lumens / sqft. You have 5 sqft.

400 watts mh at 30,000 lumens would work for veg.

250 watt hps at 28,000 lumens would work for flower, but I would put a 400 watt hps at 50,000 lumens would be better

I had the same question. thanks for the info.

 

[OldSkool]

You got it Hickman! You win a cookie! Unless you wanna wait till Nov or Dec for a bud...