400 watt expirence grower advice PLEASE READ

hey guys, im a expirience indoor grower along with outdoor and i wanna hear from you guys, the pros.

what would be the best size room for a 400 watt hps?

heres my plants

4ft long, 6ft tall, and 3 feet wide...the 400 watter will not be air cooled but will have two 6inch circular fans inside box directed at bulb...there is a 6inch exhaust hole at the top with a 6 in duct booster fan...at the bottom two regular size box house fans....fox farm nute trio all the way...what do you guys think? most concern is the box size? is this good for a 400 watt and 4-5 plants that will be flowered around 15 inches? and do you think my vent system will be alright? i plan to add another exhuast 6incher with in the weeks to come PLEASE REPLY i appreciate it guys...thanks

ohhh and if anybody has done something similar to what i plan to do ..share or send a link to a grow id like to have a ball park on my yeild..im using skunk no1 seeds

without air cooling on the hps it will be hot in the room i have a similar setup make sure you have a nice intake

Butthead08 said:

without air cooling on the hps it will be hot in the room i have a similar setup make sure you have a nice intake

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I have a 400w in my closet and I think it really only covers about a 2x2 area, for 4 ft you may want to go with a 600 or 1000. I have the advantage of being able to keep my closet wide open and its just next to a window. I have two plants in 5 gallon buckets and the light is probably 18 inches above them as I think any higher and they would stretch. I cant see a 3rd bucket being able to get any decent light on it. 3 buckets wide that is. I currently have a 400 just next to a 600 in a 3x5 just so I get good coverage but it would be hot if I had to keep the closet closed.