Stealth TV Cabinet Setup CFL Scrog or MH/HPS

So I've foamed the corners of the door... if very little light leaks through the foam and there will be dark 24/7 in the room the cab is located- should worry about light leaks? It is white foam so light is showing THROUGH the foam... will it be an issue?

Foam:

another question- how effective will my inline fan be if I'm exhausting THROUGH my hood? And will this cause heat to go up more so than if I just had a computer fan on the hood? My hood has glass but how many cfm's should my fan be to intake and exhaust enough air for my hood? Its a yield master 2 - classic 6" ... gonna run 400w mh/hps... going to use 6" ducting (hopefully that's obvious) and I have one 5½" computer fan about 35-45cfm... would that be enough? Thanks in advance.

If anyone is still on here- update...

Installed 4" inline for intake and 6" inline for exhaust. Currently have 2 sprouts. One I've transplanted into a 1Gal smart pot (showing roots through bottom of rock wool) and the other is still in the cube... Using fox farm soil, growing bag seed from my uncles last harvest (the game og). 2:2 success rate in the rock wool. And is it true that you it is best to transplant into final pot asap? I've read mixed reviews. Thanks and happy smoking.

-HOLZ3R







(I can't afford TRUE inline fans so in using duct boosters as intake and exhaust fans :/ )