What lights to use

sykk

sykk

Member
I have a 36x20x60 closet tent set up with a 190 cfm inline fan kit and a diy cool tube. Currently I am running 150w HPS. Should I go to a bigger light or is the 150 enough for an area that size? I was looking at some 250s and I can replace my mag ballast 150 with a nicer digital 250 or 400 for a fairly reasonable price. I just dont wanna get too much and have a heat problem. Anyone have any advice??
 
majek

majek

Well-Known Member
150 is ok but 250 watts is much better around 25,000 lumens total, you can yield around 4-5 ounces per plant with a 250w. You are having heat problems with a cool tube and a 150w? What kind of ventilation?
 
Slipon

Slipon

Well-Known Member
did you try to run it all in ther and check temps at diffrent times a day ?

(a good thermo/hydro meter can also safe your max and min. temps/humidity doing the day)

need to be able to keep it around 80F .. if it peak at +85F at mid day etc. it might be a idea to run it at night aso.
 
Austinmac

Austinmac

Well-Known Member
i would say keep the 150 if you like the results your achieving from it but you can always beef up your setup with some supplementary lighting i like the t5 bars their great for side lighting and have pretty good penatration if you can get the high outputs 2700k for flowering 6500k for veggie and they run pretty cool with minimal cost! hope this helps
 
sykk

sykk

Member
majek said:
150 is ok but 250 watts is much better around 25,000 lumens total, you can yield around 4-5 ounces per plant with a 250w. You are having heat problems with a cool tube and a 150w? What kind of ventilation?
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Not having a heat issue yet, just dont wanna go to big and run into one. Ill try to post a pic of my setup this evening when the lights are on.
 
Slipon

Slipon

Well-Known Member
I have only good things to say about T5s .. but yea .. go with tht HO (high output) type if you choose that way .. or you might aswell just get normal T8 .. keep em with in 10 inch of the plants ..

they produce next to no heat .. I can tutch mine .. and they have now been running for 6 days strait on my small new seedlings ..
 
209 Cali closet grower

209 Cali closet grower

Well-Known Member
sykk said:
I have a 36x20x60 closet tent set up with a 190 cfm inline fan kit and a diy cool tube. Currently I am running 150w HPS. Should I go to a bigger light or is the 150 enough for an area that size? I was looking at some 250s and I can replace my mag ballast 150 with a nicer digital 250 or 400 for a fairly reasonable price. I just dont wanna get too much and have a heat problem. Anyone have any advice??
Click to expand...
Get a 400 dimmable ballast.That way you can grow more latter on.If to hot, then just set it up to 200w.Love my dimmable ballast.
 
Clown Baby

Clown Baby

Well-Known Member
Crank it up to a 250 or 400w brah brah. Just make sure you can vent the exhaust outside of your room.

You'll get a nice bump in yield if you can control the temps.
 
MidnightToter

MidnightToter

Active Member
Im going to say for that space you would want a 400W MH/HPS dimmable system. It should cover your square footage needs. And they aren't overly hot
 
sykk

sykk

Member
MidnightToter said:
Im going to say for that space you would want a 400W MH/HPS dimmable system. It should cover your square footage needs. And they aren't overly hot
Click to expand...
Been looking at those on the Evilbay. Theres never any used ones up and I just cant seem to convince the wife I need it....:wall:
 
mr2shim

mr2shim

Well-Known Member
I have the same size tent and use a 400w hps/mh, with a 4" 190cfm fan using a cool tube. Grow is in my signature. Never had heat issues, always have had tent sealed up without issues.
 
puckuck

puckuck

Active Member
I have a 2 x 4 x 5 tent with 400w dimmable ballast w/ cool tube with oscillating fan, and I leave the tent crack open at the bottom with a twin window fan that you can make one intake and the other exhaust.

My temps are now at 79 f to 80f in the day with my A/C on.
 
mr2shim

mr2shim

Well-Known Member
You don't want an intake fan. You want the tent sealed up to where the exhaust fan is sucking air through the carbon filter creating a negative pressure inside the tent. In layman's terms, free intake fan. Grab some reflective tape and tape all the seams.
 
mr2shim

mr2shim

Well-Known Member
No, I was just saying general it's best to run one exhaust fan and create negative pressure within your tent. IMO it's optimal for smell removal when you get to that stage. I just set mine up this way from the beginning so I don't have to worry about it later.
 
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