400w hps in small closet

MimoA

Member
hi
ive got a small closet 2.5 feet*6 feet*1 feet. used 2 cfl 45w and 135w uv lighthouse hydro led (the result were bad). growing in soil.
ive got 400w hps from a friend and would like to know if i can use the 400w vertical with a cooltube, in my 2.5 feet width closet.
i guess the big problem is the heat. a cooltube is enough or the closet is to small
im growing 1 plant and cant afford a new light.
did any body alse had succsses with the 135w uv led?

thnks
 
The LED works complimented with the CFLs for an affordable, still great producing solution.

HPS works well as a standard all around tride and true growing formula.

They both work see. But you may of placed your cfls/leds too far away from the plant, wrong color spectrum cfls, wrong color spectrum leds, improper feeding...the list goes on. I would say if you have the HPS use it, I still love HPS for flower however I also use an LED. Ultimately if that 400w ballast is digital and dimmable I would throw the ballast down to 250w and run your LED w/ your HPS for a total of 385w.

I also would not grow vertical you have the depth to plant pots, why grow vertical? Throw the cool tube horizontal and if you dont exhaust your f*kd in that size of closet unless you are always there to open the door. *not stealth anymore* So cooltube is probably a 6": grab some ducting, preferably ducting tape as it holds better on the stuff, and a inline fan.

**Here is what I strongly suggest for exhausting that cooltube. Grab a cheapo 25$ inline 6" fan from Amazon or equivalent that blows at least 200CFM this is 200CFM as long as it is pulling through tubing. Put the fan on the outside and build a carbon filter on the end of it, with the fan being one end of your filter. Wrap mesh around the fan and another 6" end and then carbon air conditioning filter around it. What this does is exhausts the air from the lamp (ill explain that side next) and then it filters the smell with the carbon. If you are not worried about smell dont use the carbon. On the end of your cooltube leave it open so that air is sucked from the light out and also residual air in the closet. This will create negative pressure in the room and a passive inlet is suggested. To do this drill a hole, a couple holes whatever you want, just so that fresh air is pulled into the closet based upon air pressure differences.
 
The LED works complimented with the CFLs for an affordable, still great producing solution.

HPS works well as a standard all around tride and true growing formula.

They both work see. But you may of placed your cfls/leds too far away from the plant, wrong color spectrum cfls, wrong color spectrum leds, improper feeding...the list goes on. I would say if you have the HPS use it, I still love HPS for flower however I also use an LED. Ultimately if that 400w ballast is digital and dimmable I would throw the ballast down to 250w and run your LED w/ your HPS for a total of 385w.

I also would not grow vertical you have the depth to plant pots, why grow vertical? Throw the cool tube horizontal and if you dont exhaust your f*kd in that size of closet unless you are always there to open the door. *not stealth anymore*

a cooltube eats lumens and a barebulb vertical increases the size of your canopy incrementally. ...vertical is the new SOG bro, didn't you get the memo?

bozo
 
A cooltube does not eat lumens. If you have a dirty lens, yes it will. If you have the improper cooltube it will as well. But a simple clear lens w/ rear reflector would not "eat" lumens. Barebulb risks the bulb to multiple issues: spraying of foliars, damage from oil touching it ie fingers on accident, burning yourself, burning your plants, fire hazards etc. However to make you happy bozo they do work yes. And indeffinately particles attached to a piece of glass will cloud light potency, I have seen this happen. Dont be lazy and clean your equipment.
 
hi
ive got a small closet 2.5 feet*6 feet*1 feet. used 2 cfl 45w and 135w uv lighthouse hydro led (the result were bad). growing in soil.
ive got 400w hps from a friend and would like to know if i can use the 400w vertical with a cooltube, in my 2.5 feet width closet.
i guess the big problem is the heat. a cooltube is enough or the closet is to small
im growing 1 plant and cant afford a new light.
did any body alse had succsses with the 135w uv led?

thnks

Hey buddy ,i grow in a near identicle size closet space.Unless you have a good exaust set up in place 400 will be too hot.I use a 250 with great results ,it gets warm with the 250 ,but a nice warm ,not too warm at all ,in fact my plants always thrive in it.I do know for that space 400 would be too warm.250 is perfect for the space.You can still get good results ,you can have the light closer to the plants the only way a 250 wouldnt be as effective is if you wanted to do more than 2 plants.But for 2 plants a 250 can be just as effective by lowering the light down more.. later.
 
a cooltube eats lumens and a barebulb vertical increases the size of your canopy incrementally. ...vertical is the new SOG bro, didn't you get the memo?

bozo

Not to mention he said there would be 1 plant, what are you going to do place a light around the plant incremintally each day. I would understand more of the direction your coming from bozo if you read his post and he had instead maybe 4 plants.
 
so, you only insult SOME people who disagree with you?

...and did it occur to you that it might be your love of horizontal that is the problem?

...and understanding the idea isn't the same thing as actual experience.

bozo
 
I have used a vertical grow setup however it was using fluoros way back when. It helped to have central lighting around 4 plants, but with one plant and 6ft above him it would seem logical to allow the plant to bush and utilize each sq.in. evenly while increasing cubic inches as the plant grows.

To understand this take an example of filling up water in a tub, as you fill it up the water expands the surface area of the tub. As water continues a 3rd dimension increases being height of level of water. Consider this your plant, as you utilize every sq. in. then increase cubic inches. It is a beneficial way to grow in given environment.

I am not insulting you, don't ask for pitty. I am demonstrating some flaws in a vertical system of 1 plant @ 2.5ft x 1 ft. When the unit of light would have to have at least a 1 ft grace zone around it to prevent burn on plants. ESPECIALLY on a unit that is not being cooled and is open. So If the light is lets say 6 inches wide, Plus 1 ft on each side theres the space of his floor alone.
 
Please demonstrate how that is wrong?

We are all learning and honestly if that is a wrong analysis of vertical growing in this closet I would greatly like to be told otherwise. Remember the first post as it is his/her thread, MimoA is specifically "worried about heat"
 
The only way I can see vertical to work is to Zig Zag up the room or bifercate your plant at start with the light since placing it in the middle will give little room on the edges to grow. You could bifercate at start and grow two sides up the walls on the right and left...but front and back vertical walls would be almost impossible with a 1ft depth.

Or a Zig zag structure I could see to work with the light positioned on the right then allow the plant to grow to it and placing on the left and tieing off each "switchback" to the wall.

^This way actually seems like an interesting method for your closet Mimo if you want to try vertical for a go.
 
here is a link to a friends grow where he is rocking two stacked 400s in barebulb vertical orientation inside a 3 x 3 ft space, i know it's a bit larger than your closet and he's growing more than one plant, i thing he's running 8, but you should really take a look at what he's doing in that space, ...and this thread is to his LAST run so you can follow along from the creation of the space until harvest, then, this NEXT run he's upgrading to a 600 over a 400, ...it is FAR better to spend your money on a quality fan and speed controller setup than to spend money on a cooltube, ...if you read through this thread you will find that this is in no way just MY opinion, then YOU can decide what YOU will do, based on all the information and not just depending on one mans opinion.

2 x 400w stacked multi-strain gimmick with blumats & sexy soil

bozo
 
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