Thx Tokudai for answering my ???'s and I appreciate your opinion on the light and venting. The only reason I'd like to go with the 400 is this cab will be just for flowering when I get a couple harvests in. Then I'll make/get another one for the vegg/clones/mother. Saves me a future upgrade.
What would you recommend for exhaust? The Vortex 6" 449 cfm or a Dayton 465 cfm? I will also be putting in atleast 1 other axial fan at the top of cab. I can put it by a window to pull air from outside or I can vent it outside. Dont think I'll be able to do both that way tho.
The cab is located in my garadge and I only need minimal stealth as I dont want it to be obvious whats going on other than that its a go.