here is an idea of my current light placment. u can see the 4 footer and 2 footer toobs and where i have em. any advice where i could/should add additional watts. im no plant but dam its bright in there even with one wall cluttered. seems to me the next best thing would be to splurge on a giant role of milar and get that crap off the back wall to make room for the 150 watter. maby even work on a larger pasive intake to counter act the increase in air flow. by means of a think plastic "light lock" . would this be a wast in the shaddow of my 400watter?