aoR Monday
Active Member
Would I need for 3 Auto flowers grown under a 250hps cool tube? This might be to direct of a question sense you cant really tell how big the plants will get but just let me know what you think. Rep to all!
What size grow tent?
- Thread starter aoR Monday
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slonez47
Active Member
You can go smaller with a 250 watt but I would'nt. Atleast 4x4 and plan for your next grow. Those autos will dig your 250watt setup and when you go photoperiod grow you have a little room. You might want more light when you do that.
aoR Monday
Active Member
Rep to all
So your all thinking I should use my 400w hps? hpw much would it cost to run 20 hours a day?
So your all thinking I should use my 400w hps? hpw much would it cost to run 20 hours a day?
ROBSTERB
Well-Known Member
i would go with the 4x4 tent because you will want the extra space after a few grows, the cost depends on you electric cost per kilowatt, mine is 13pence so for every 2 and a half hours the 400 is on it cost about 13p, so about 94p a day for 18 hours on, 12 hours is about 65p, you can run a 600 for the same price 12/12 as the 400 costs for 18 hours, so taken that into account if you veg with the 400 when you switch to flower you can put the 600 on for no extra cost.
aoR Monday
Active Member
Oh okay Well I calculated it and its 80 bucks to have my 400w hps on 20 hours a day for a month. here is another question. when i get a grow tent im going to have a 6in inlin fan connected to my 400w hps cooltube venting out of the tent. Do I need another fan venting into the tent?
ROBSTERB
Well-Known Member
no just use a passive intake, your tent will have vents along the bottom so when your fan is sucking the air out the tent new fresh air will be sucked in through these flaps.
