Best HPS lighting for 5x5 tent

Looking to add another light to my 5x5x6 grow tent currently have a 1k in there in veg which is fine for now but when I want to flower I'd either like to run two 600s or one 1000 and 1 600 or two 750s ? Both will be in air cooled units and obviously digital ballast I might even go as far as getting the 750 watt HPS bulbs from plantmax. I'll be growing a single plant in a scrog or I could throw another one in there because I have 3 plants each one under its own 1000 and I got a extra ballast.
Plant is around 50 days from seed my temperatures are in check as well as humidity. Everything seems pretty fine for now.
For cooling I'm using an air mover from the hard ware store 550 CFM carpet dryer it's connected to a a short 8 inch duct that feeds into the bottom of the tent. The air at floor of my basement is rather really cool so my furnace doesn't affect the cooling of the tent. At the top I have two vivosun sun 4 inch fans connected exhausting air out. They are plugged into a power bar that's plugged into my inkbird controller. My lights will be cooled by separate fans. For humidity I'm using mist makers I bought off of Amazon and they are sitting inside my old filter type evaporative humidifier I took the filter out installed the mist makers inside the humidifier and filled it up and turned in on as I normally would and set it up on a power bar connected to the inkbird. The fan comes on seldomly to keep it cool and doesn't run constantly and the humidifier quickly restored humidity. Using a 18/6 light cycle and strain is banana Kush.

You want to run 80 W or over per sqft? Why?

twentyeight.threefive said:

You want to run 80 W or over per sqft? Why?

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I don't 2 1000s is 80 watts per square foot i was talking about 2 600s or 1 1k and a 600 watter 1600 watt or 2 750s which is 60 watts per square foot.

These bulbs are the only thing I'm missing really, I have 600s I have 1000s the only option I don't have is 750 I mean I could run a 1000 at 750 but the color will be off. I could run a 600 at 750 but it won't last as long and the colour will be out too.

Onextremebuzz said:

I don't 2 1000s is 80 watts per square foot i was talking about 2 600s or 1 1k and a 600 watter 1600 watt or 2 750s which is 60 watts per square foot.

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I'd us 1x de 1k hps or 2x de cdm cmh 630w.... the second ones will rock

oill said:

I'd us 1x de 1k hps or 2x de cdm cmh 630w.... the second ones will rock

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I don't have the height for a de HPS plus your not supposed to air cool those lights heat extraction is necessary. I would though if I have 4 extra feet.

Onextremebuzz said:

I don't 2 1000s is 80 watts per square foot i was talking about 2 600s or 1 1k and a 600 watter 1600 watt or 2 750s which is 60 watts per square foot.

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Oh read it as adding to the existing 1k.

Have you considered a mixture? A combo of two - CMH, HPS, LED

I feel like you could get a better spectrum with a mixture. CMH/LED would be killer.

Onextremebuzz said:

I don't have the height for a de HPS plus your not supposed to air cool those lights heat extraction is necessary. I would though if I have 4 extra feet.

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Use the cdm lights then... they are amazing

Well I just flipped it to flower I went with 2 600s the tent seems evenly lit and not to much overly bright. I'm about as close to 50 watts per square foot as I can get

Onextremebuzz said:

Well I just flipped it to flower I went with 2 600s the tent seems evenly lit and not to much overly bright. I'm about as close to 50 watts per square foot as I can get

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How are you managing temps?
With two 600's I would be thinking you are in the high 80's?

Herb & Suds said:

How are you managing temps?
With two 600's I would be thinking you are in the high 80's?

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With a 1000 watt mh I could easily keep my canopy at 23 degrees Celsius or 73 degrees F. I'm using an air mover 550 CFM carpet dryer connected to a 8 inch hose that feeds cool basement air into base of the tent. For exhaust same thing 550 CFM it only needs to run for a few seconds to maintain temps. Plus I am running about 500 CFM through my hoods starting with a Lumox inline fan feeding the first hood, between the first hood and the second hood there's another 4 inch vivo sun fan after the 2nd hood there is another 4 inch vivosun fan and one at the window to help boost and keep draft out. I'm moving an insane amount of air. When it calls for it. Light fans run all the time big fans come one seldomly humidity is controlled by inkbird I'm using a modified old school evaporative humidifier to be a cool mister (that's the trick) it acts as a cooling eliminating the use for ac.

If your tent is only 6 feet tall, it seems like you will run out of growing room after the stretch in flower. My tent is over 7 feet tall and I can barely manage with LED lights, I can't imagine having to deal with the heat from HPS, you need lots of clearance to be safe.

Driver733 said:

If your tent is only 6 feet tall, it seems like you will run out of growing room after the stretch in flower. My tent is over 7 feet tall and I can barely manage with LED lights, I can't imagine having to deal with the heat from HPS, you need lots of clearance to be safe.

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I'm scrogging I don't think I'll run out room just haven't put net up yet.

Id cover that dirt with some mulch, intensity from the lights will dry it out quick. I dont see a tray is their drain holes?

myke said:

Id cover that dirt with some mulch, intensity from the lights will dry it out quick. I dont see a tray is their drain holes?

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There's absolutely drain holes. It just drains out. I suppose I could put a catch tray but it's in the basement so it's not really necessary. If I spill to much I could just shop vac it up and the air flow will dry the rest. Nothing a good ol wipe can't correct. I think I might have used to much dirt this round next time definitely doing smaller containers. It takes about 4 days to drink an entire 5 gallon bucket feed or watering 6 at the most for absolutely dry. So I expect it to double that in flower. I like the mulch idea tho. I'll try it out. Also when it's dry I feel It can drink more than a 5 gallon. Last watering barely any out the bottom.

Onextremebuzz said:

There's absolutely drain holes. It just drains out. I suppose I could put a catch tray but it's in the basement so it's not really necessary. If I spill to much I could just shop vac it up and the air flow will dry the rest. Nothing a good ol wipe can't correct. I think I might have used to much dirt this round next time definitely doing smaller containers. It takes about 4 days to drink an entire 5 gallon bucket feed or watering 6 at the most for absolutely dry. So I expect it to double that in flower. I like the mulch idea tho. I'll try it out. Also when it's dry I feel It can drink more than a 5 gallon. Last watering barely any out the bottom.

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You should absolutely get trays under your pots, the bottom of your tent will quickly get ruined. You will have a soggy tent and damp basement floor, not good! It is not waterproof, even if the manufacturer said it is. I ruined the bottom of one of my first tents this way.

Not to mention there should be an air gap so the soil can breathe.

I can shove 2x4s under the plastic totes. Get them off the floor at least. Make some use of some old cooking trays for I suppose or until next flower cycle. A little ingenuity I guess.

myke said:

Not to mention there should be an air gap so the soil can breathe.

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Do you think if I drilled holes in the side I could help it breathe better?