Do I need venting for a 2x2 tent with a 250 watt ballast

Meast21

Well-Known Member
400-600w hps/mh in a 3x3 or 4x4 is a great way to get started on the cheap if you've got the space but the 250w hids are horribly inefficient.
I learned to grow in a 2' x1.5' locker and could get 5.5oz's with 1 plant. The plant couldn't be over 2 feet high.
 

Lenin1917

Well-Known Member
I run a 600w hps/mh in a 4x4, a friend of mine does though. He manages to pull 3-4oz out of his sectioned off bit of closet his wife let's him use.
 

Meast21

Well-Known Member
I run a 600w hps/mh in a 4x4, a friend of mine does though. He manages to pull 3-4oz out of his sectioned off bit of closet his wife let's him use.
I ended up buying a 32"x32" tent 32''x32''x64'' Grow Tent Indoor Hydroponics Box Horticulture 3'x3' Growing Room | eBay
And went with the LED that was the next step up from what you recommended. Bloom Plus 1500W LED Grow Light Sunlike Full Spectrum Indoor Plants Veg Flower 686494422025 | eBay


So a slightly bigger tent and a slightly bigger LED. Do you think the above LED is big enough??
 

testtime

Well-Known Member
How do you keep in sturdy in the ducting tent hole?? Can I get a pic??
Any enclosed fan device and a bit of tubing can supply you with the air flow you need.

PXL_20210704_233116070.jpg

This is a HEPA of filter with the HEPA filter removed which gives it incredible air flow with a bit of tube duct taped to where the air comes out. I push that through the vent in the tent.
 

Tracker

Well-Known Member
I have 5 other tents and I don't cycle air into the tent. I really just remove the air out of the tent and have no issues.
Pull air out or push it in, either way. On my tent I pull out from the tent and push the exhaust through a carbon filter. I want to keep the pressure negative in the tent, so everything leaving the tent goes through the filter.
 

Meast21

Well-Known Member
How are you pulling pounds when you don't seem to know anything about lighting, ventilation or tents? ps. That Bloom Plus LED you bought is made for a 23" x 23" tent.
Its equivilant to a 400 HID.... I get 1/2 pound off of 1 plant in a 3x3 using a 400hps with no veg time in the tent in DWC... My tent is like 30"x30" that LED will be fine.
 

Lenin1917

Well-Known Member
How are you pulling pounds when you don't seem to know anything about lighting, ventilation or tents? ps. That Bloom Plus LED you bought is made for a 23" x 23" tent.
Was thinking the same thing, just trying to be nice. It's OK to be new at stuff and ask questions. No need to try and bs everyone.
 

Lenin1917

Well-Known Member
You're looking at the numbers wrong. Actual wattage and umol/w are what you use to calculate your needs. Just enter the data in the calculator.
 
Top