overkill with lights?

loolagigi · Feb 5, 2010

in a area 4.88x2.5' 2- 400 watt hps would place 9,000 lu/sq'. is this too much light? could i possibly yield a elbow?

Papa · Feb 5, 2010

many of the most experienced farmers on the board recommend between 50 and 100 watts per sq. ft.

actually, the lumens per square foot (which you used) is a better unit of measurement to use because it refers to the amount of light and not the amount of energy used. (different lamps [and especially different wattages] produce different amounts of light per watt).

but anyway . . . 50w/sq. ft. with 1,000w HPS (140,000 lumens) works out to just under 9,000 l/sq. ft. . . . so you're right at the low end of the commonly recommended level.

Papa

Donk Frog · Feb 5, 2010

no such thing as too much light...so long as u can keep temps in check

lollipopman · Feb 5, 2010

1 400 covers a 2.5x2.5 area, the area your talking about is in your closet with your cabinet still in it.. thats why i said to do 2 400's, since your using one power outlet it will be safe and get a harvest every 4-6 weeks...or you can do one big one..its up to you...

the first pics are fresh clones just cut...

second pic is them going in my dwc bucket after 3 weeks in the cloner..

third and forth pic is 2 weeks veg, just slap them into flower

this gives me a harvest every 5 weeks......

loolagigi · Feb 5, 2010

super, thanks guys.

loolagigi · Feb 5, 2010

hey lollipopman, you use 2-400 hps for flower? what do you yield, and what strain? this picture shows the footprint i will use. there is more room in the closet, but i need to be able to open the cabinet doors. i should be able to place 4 plants in that area, with some training.:cool0010:

lollipopman · Feb 5, 2010

i use a 8 bulb t5 for veg than a 600 for the first 5 weeks then they go over to a 1000 for last 5... 1.5lbs with my gangsta haze

Malachi · Feb 5, 2010

Upgrade to 430 EYE Hort. Lights, you get about 8,500 more lumens per bulb with a 400 ballast. I use 2-430's and I can pull off about 2 elbows in a SOG garden under a 2.5 x 4.5 footprint

chief greenleaf · Feb 8, 2010

What up Malachi, so you you actually have already pulled 2 bo's in a 2.5x4.5 ft space under 2 430s??? If so thats a very nice yield my dude!
My journal should be up and runnin somtime this week, Im in a similar set up. Im runnin SOG as well with 2 400s in a 2x4 space in ebb & flow w/ the connoisseur line. This is my first time usin a space this small, you think a lb is reasonalbe or you think Im shootin too high? Im def shootin for at least .5 gpw and an elbow would put me right there, and if your pullin 2 out of a 2.5x4.5 that def ups my confidence level a lil bit!

MASSES 420KING · Feb 8, 2010

Donk Frog said:
no such thing as too much light...so long as u can keep temps in check

i ran into the problem of to much light/lux/lumen i had so much pouring from my hps's that cola tops and leafs were bleaching out [90 gram cola tops were the average weight on that grow and used biocanna line too:harvest::bongsmi::cash:rauch08::sun2::anim_30::banana::bong2:

MASSES 420KING · Feb 8, 2010

hey lollipop is that a rainforest i c in that picture i used a 318 full threw and pulled 8ozs off of 4 plants no bigger then 18" high the strain was purple hash plant and it was danky

Malachi · Feb 8, 2010

chief greenleaf said:
What up Malachi, so you you actually have already pulled 2 bo's in a 2.5x4.5 ft space under 2 430s??? If so thats a very nice yield my dude!
My journal should be up and runnin somtime this week, Im in a similar set up. Im runnin SOG as well with 2 400s in a 2x4 space in ebb & flow w/ the connoisseur line. This is my first time usin a space this small, you think a lb is reasonalbe or you think Im shootin too high? Im def shootin for at least .5 gpw and an elbow would put me right there, and if your pullin 2 out of a 2.5x4.5 that def ups my confidence level a lil bit!

Well last harvest was a little under 30 oz, so not quite 2, but i am right there. I think I can get up to 2 for my next run, I am still dialing it in a little bit. I burned the plants a little this time so I will probally get about 28-30 again. I am going to use all the same strain this time for uniformity. I think one strain dialed in perfect will be better then trying 3 strains for variety.

chief greenleaf · Feb 9, 2010

Hey man 30 zips in a space that small usin only 430s is very nice my friend! People are real quick ta throw around the whole gram per watt thing like its a standard or somethin but dont realize how well things have ta be dialed in to acomplish those kind of yields ya know.
I ran a space similar to the one Im in now back when I first started up and was more than happy ta pull half a lb. But runnin this space for the first time Im just shootin for in between 8oz and a lb, I think 2 is unrealistic without havin a chance ta get this space dialed in but we'll see. I should have the journal up and runnin pretty soon.

Malachi · Feb 9, 2010

Chief, you are running Chocolope right? How does she yield for you? I was going to run a 45 plant SOG in that tight little space I have, but I am taking her down to 32. That way its a little more uniform, 16 under each light. I am also vegging for an extra week this time to see if that helps. My clones rooted about 3 days ago and I placed them in some promix under T-5's. I will leave them there until the 20th and then transplant them into the SOG.

lollipopman · Feb 9, 2010

Ive tried to do a dwc sog, i had 8 plants in one tub, 2 tubs under each light, was pulling around 10 oz every harvest, but i noticed that one plant over took the tub... thats when i learned about root roping and it made since..thanks tk..now im doing 4 plants instead of 16 and getting way more wieght... plus the strain has alot to with it.. my gangsta would do double the amount my querkle does... and a 1000 does make a differance....

chief greenleaf · Feb 11, 2010

Malachi said:
Chief, you are running Chocolope right? How does she yield for you? I was going to run a 45 plant SOG in that tight little space I have, but I am taking her down to 32. That way its a little more uniform, 16 under each light. I am also vegging for an extra week this time to see if that helps. My clones rooted about 3 days ago and I placed them in some promix under T-5's. I will leave them there until the 20th and then transplant them into the SOG.

Yea Im runnin Chocolope but I lucked out and got a really rare pheno thats way different than any others Ive seen. She stays real short with tight node spacing and will branch like crazy if topped. She finishes in about 50 days compared to 8-10 wks too. DNA claims to have never seen this pheno in any test runs or anything, I was geeked as hell when I heard that! She actually grows extremely similar to C-99, which is suspected of being used to make Cannolope Haze, which is the father to the Choc. DNA denies it but the resemblance in my pheno makes me wonder, especailly since I got a 50 day strain from 2 15+ week long flowering 100% sativas!
But she yields really well for me and is def above avg in potency which is sometimes hard to get both these qualitys in one strain ya know! When I ran 4 per sq ft in coco we got around 20 g's per plant.:party0033: But the cup winning pheno is pretty easy ta find too, Im pretty sure I found it and it was in the same pack as my mother so Id say you can def find a keeper in a a pack, it was a 6 pack at that! All the phenos I grew out great yield/high and finished around 8-9 wks. Ive heard some Thai dom phenos will try ta go 10+ but I didnt get any of those.
Id def like ta see you try 45 in your space, with the right strain youd get a killer yield! Im also runnin 32 in my
2x4, she does well 4 per sq ft but Ive had ta give about half of em a hair cut ta try ta even out the canopy and now those are tryin ta branch all over the damn place! And as tight as were runnin it I cant have that shit!

CheebaMonkey · Feb 11, 2010

Papa said:
many of the most experienced farmers on the board recommend between 50 and 100 watts per sq. ft.

actually, the lumens per square foot (which you used) is a better unit of measurement to use because it refers to the amount of light and not the amount of energy used. (different lamps [and especially different wattages] produce different amounts of light per watt).

but anyway . . . 50w/sq. ft. with 1,000w HPS (140,000 lumens) works out to just under 9,000 l/sq. ft. . . . so you're right at the low end of the commonly recommended level.

Papa

Wouldn't you have to measure the cubic feet? Why doesn't height matter?

Malachi · Feb 11, 2010

Lumens are rated at 1ft above plant canopy

Papa · Feb 11, 2010

CheebaMonkey said:
Wouldn't you have to measure the cubic feet? Why doesn't height matter?

to be more accurate, yes, height matters. in fact, the height of the room and the height of the lamp within the room both matter. other factors also play a part, including the proportions of the room, lamp placement, and the colors of the walls, floor, and ceiling. The numbers that we're throwing around are really estimates, rules of thumb, and assume some "typical" conditions. the best thing to do here is to get a light meter and keep track of how your plants respond to changes of lighting. it's all part of dialing in your room.

Malachi said:
Lumens are rated at 1ft above plant canopy

Actually, the lumen output of a lamp tells us how much light radiates from that lamp (in all directions, total). The amount of light that is at a specific location (say, 1ft above plant canopy) is measured in lux or footcandles.

Malachi · Feb 15, 2010

Lumen: A measurement of light output, refers to the amount of light emitted by one candle that falls on one square foot of surface located at a distance of one foot from the candle.

overkill with lights?

overkill with lights?

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