2x2x5 w 600w hps

Someone asked me to show a picture of my light set up. Here it is.

+rep for the pics thanks! I was hoping for a full enclosure too, but these are awesome.

I just finished rebuilding my tent last night. Its about 27"x20"x52", with a 400 watt vented (not cool tube, but pretty close), passive intake on bottom, exhaust out the top. I have a 120mm (120V AC, blows a lot of air) fan pulling air out of the reflector and another one just for extra exhaust both hooked up to the same outlet. I think the mylar or similar material tents really help with heat control since they conduct heat through the walls and top much better.

Anyway, I'll post some pictures with what I'm working with when I am home later tonight. Have to transplant the kids later too.

What kind of fans are you using?

How are you finding temps in a tent that small with 600w?

I see alot of bends in ductwork which isn't good as for every 90 bend the air is restricted by around 20%.

If temps are staying ok for you then great. I just don't see how this light in that small an area can be worth the cost to run it.

I run 400w over a 3ftx3ft footprint in a room that's 3.5x7x8ft. I pull around 16oz average.

With only 2x2 footprint your humidity might be a problem once its full and how do you get a dehumidifier in that area to cope?


Not trying to be a twat just concerned you might not be utilising the light to its fullest.

IMO 600w should be good for 4-6 3ft tall plants with around 4oz per plant.


J

There are some full pics. As for your questions, no problem. I keep temps down with a window ac. The ac is outside the tent so the only air that turns the condensor on is outside the tent right? I just keep that higher than what I set the ac and BAM constant cold air. I put that cold air in to the air cooled light exhaust so my hood is cold to the touch. I also have a small 4" ac duct going in the tent. I use 6" hydrofarm fans. 1 for the light exhaust and 1 for a charcoal filter. As for humidity, the plants seem to make their own perfect humidity. I noticed this when I put clones in and barely any room is full humidity is 0. As they grow I keep the humidity probe outside and inside the plants. Inside they always stay 45%. outside stays 40%. Maybe I'm lucky? They fill that 2x2x2 area completely. I can't even see a few inches in yet every time it is like Christmas. The best buds are in the middle. To protect myself against mold I foliar spray with Tru Blooms hntil the last week of flower. There are microbes in Tru Blooms that competes with mold and eats it. I have never had a mold or bug problem. As for wasting the 600w.. it could be true. However I used to grow with 1000w to a 4x4 area and I yield more off this 600w in a 2x2. The reason I do is because I keep the light no more than 2-3 inches from the plant. I get incredibly dense nugs because of this. Because my hood is 1.5x1.5 or skmething like that and also so close, it won't hit anything past a 2.5x2.5 foot area. I could always try experimenting with larger hoods later but in my mind.. a larger hood hits a 4x4 area.. but the light had to travel the extra distance to the far parts of hood right? Distance up and down and distance left and right is still distance which degrades lumens. If they say you can't have a hps more than 2' away.. and around a foot is even better.. why stretch a 400 or my 600w an extra foot in each direction? Just the way I see it. And I have a plan to do a double harvest this time. Last time with og I got 18 oz great quality and 2oz pop corn. A friend of mine uses a small light and did a double harvest.. the second pick was better than the first. So If I can still do another 18 off my middles/tops or even just 14.. then get another few 4-5 oz off the bottom 3 weeks later.. I would consider even the original 16 oz of super dense nugs a success. I was thinking about going to 1000's but the only difference is the amount of power so it penetrates more. Both 600 and 1000w hps use 4100k color index which is all the plants care about. 1 1000w with a 20-40% increase or 2 600w for only 200 more power cost and 200% yield increase. (2 lights 2 area's.. double. I am curious about your 4oz per plant for 4-6 in a 2x2x5 area. I had 6 last time and they competed for space so much 1 actually diedd early on.. well I took it out. They were more cramped than I wanted because I thought they grew like indica's but they were stretchy.. so 5 plants at 18oz great and 2oz pop corn.. that's 4oz a plant and that took some good space. If you know a way for 4oz a plant at 6 plants that would be awesome. But so far this screen keeps everything even and next to each other.

You certainly are very luck with the RH.

I suffered with microclimates once due to RH being too high between plants which gave me botrytis.

Glad it's dialed in for you.

Wasn't sure how experienced you were and was trying to help.


Nice nuggs!!!!



J

I wasn't talking about 4-6 in your current area. I was talking that's how many 2-3ft plants it can light up.



J

this is pretty cool, it looks like you got all the good equipment and no space! lol ifit works for you though eh fuck it, i use a 600 in a 4by2 area and ive noticed the outer edges coudl use more light, i would like to add another 400 or 600, but temp are iffy as it is, cool setup!


ps. also in your post you say you keep the plants 2 or 3 inches away from the light, is that the bulb or the glass covering? i did this once and my plants became light bleached, like the very tops turned pure pure white and seemed to die, they never recovered but the plants finished fine, i just had to cut off the white part at harvest. how do you stop light bleaching with the plants so close to the light? i remember but plants were like 4 inches from the glass and they got light bleached, thanks

No problems. Oh ok I gotcha on the plant amounts. I actually said that about the 600 vs 1000 and mentioning bigger hoods reducing lumens to see any comments about it. That sucks to hear about the mold. I am still scared as this is my second time having them so bunched but it seems that tru blooms really works.

I have the tops 2-4 inches away from the glass. I had a bleached top once.. it burnt it then bleached white. I fixed this issue with good air flow between tops and light lense. I keep thermometer at hottest highest point of tops, get best air flow I can then raise light until the temperature is what I want it to be.

great set up. this is the kind of set up that people tell you u cant do because of heat or bleaching. im willing to bet if u throw some heavy sativas in there and scrog'd them in a real kinky manner, they would love the intensity of that light and u you would prob get dense sativa nugs. i am going to be running some blue dream clones i got today under a 400 in a 2x3x4 space. i would rather run it in a 2x2 but ill settle with the set up at the moment

sub'd and +rep

Yeah I hear that. It can definitely be done. The og chemdawg I had flourished and had big ones for sure. Grew very sativa like.

Rob0769 said:

Yeah I hear that. It can definitely be done. The og chemdawg I had flourished and had big ones for sure. Grew very sativa like.

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thanks for the info, my plants turned white when the light was2 inches away, my temp wasnt the problem it was actually pure white, not burnt, i guess i need to look into it more, maybe strain related.

There needs to be more recognition for those growing in tit spaces with high wattage lights. Yes, it probably shouldn't be done, especially not if you are a beginner. However, it is of course possible. I just got my 400 to upgrade from a 150 and ill be using a 25"x20" space. Right now I'm not even using the glass lens and temps are about 78 79 (65-70) ambient at the intake. Going to scrog it and see how much of a difference the 400 makes. It will be my 7th or 8th grow I think.

About RH, you can't forgt about ambient humidity either. If you grow in SoCal, front range Colorado (reppin!), Arizona, etc its going to be a lot easier to control humidity than if you are in Virginia or Florida where humidity is already very high.

*another question...I was about to start a new thread about this it I think I can answer it here. Rob, how do you have you're screen secured? Is it just attached to the frame poles? I was about to make a frame to fix the screen to, but I have a PVC pipe frame and was thinking maybe I can just secure the screen to the frame poles. Wasn't sure if this was secure enough but it looks like that's how yours is.

Haha I went to the dollar store and got a few packs of pipe cleaners. I use them to tie the branches down and I also used to to hold that white fan upside down and as my screen border. I tie the ends together, then tie to one corner of the tent. As I got to each corner I bent the pole in slightly (making the pipe cleaner tight and makes a guitar noise but not super tight just enough) and would wrap it around each corner once. I then took little pieces of pipe cleaner and used it like a twist tie around the border holding the net to the border. 1 every couple inches. I am actually considering making my next net 100% ouch of pipe cleaners.. it would be way faster than melting ends together for inch holes haha.

Darn phone.. missed one button and it wouldn't let me finish. Now that I look at the corners I wrapped it around once and while doing that also louped around the wire. You can use duct tape right above and below where the screen is on the poles to stop the screen from sliding up if it isn't tight enough.

He very nice. I saw a street hockey goal next to the dumpster in my neighborhood. Took it apart and kept the net. Perfect 1.5 inch spaced holes!

hey bro just wanna let u and everyone know....NO PIC OF CELL PHONE! merry christmas

Great grow, sweeet- subbed

glockdoc said:

hey bro just wanna let u and everyone know....NO PIC OF CELL PHONE! merry christmas

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Why do you say no pic of cell phone?