Building a new grow room need advice

Ok guys I've ordered a 400w dimable apollo light system with cool tube and mh/hps bulbs. I'm thinking 4x4 growroom. Already have the plywood to construct it with. Going to purchase some dryer vent for my heat issues and use an inlibe fane for exhaust. Don't have a carbon scrubber but i will buy some activated carbon from wally world today and create my own. How does this spuns? Im ordering 5 bluemystic auto flower seeds once i get the specifics of the grow room down. i need any abd all opinions on how i can get.a food yeild andvkeep everything under conteol. +rep for any good ideas ivr yet ti think of. i want this grow to be on a professionals. level. thanks for any and all help.

Mmm not trying to foil your plan but running only 400 Watts will not give you a pro level grow with only five plants while also taking advantage of all the room you have...I run 1000w in a four nine square and run my 400 in a tiny closet lol...their is a link I have somewhere on here to show you an example of what you can do with a 400 if you want me to track out down but in that size area with that light all I would consider is a 25-50 plant scrog....trying to grow just five means you need some veg time and that means you need some penetration and a 400 just doesn't have it while covering that area...

Don't get me wrong you can do what your planning but do not try to fill the tent flower them younger, closer, and in a back quadrant of the tent

Ill only have five autos so should i just make a screen and build the room smaller? They say the autos will be at harvest in a little ovet a month. I'm starting small to build my cash to advance. Just want ghe best outta my little cash lol

This will be my first full grow. I've gotten them to flower and my probation officer showed up so i had to toss em. and ignore the door. I'm off papers this month though

Well don't go smaller unless you don't plan on upgrading the light...honestly I went from a 4 to two fours to a 6 to thousand...I should have skipped the four!! If you can change the order I would..if not just do a few runs with the 4 but only using a corner of your room, then change to a six our thousand down the line to use the whole room.also if I were you and planning on going bigger in the future, I would make my room 5 by 7 to allow room to work on a full 4X4 or 5x5 footprint....autos will start flowering around 3-4 Weeks in you then have about an 8week flowering cycle so bean to smoke in a month not a chance lol...also I would veg with flouros no reason to waste electricity

Its dimable. I contacted the seller and opted for a 600w dimable gull wing with hps and mh included. what size room would you suggest with that light?

Its dimable. I contacted the seller and opted for a 600w dimable gull wing with hps and mh included. what size room would you suggest with that light?

Ooh ok good with the 600 then I would still suggest maybe a four and a half by 6 so you have a few feet to step in or put equipment inside...