I still dont quite understand the ducting and passive intake, can you explain that a little more? I'm trying to figure out what to hook up to the passive intake, but i have most everything else figured out.

I have a 2 foot solid strip that has 4 outlets on it, and i want to connect a outlet-to-socket with a Y splitter, which will allow me to have up to 8 bulbs going at a time. I might have to modify the box design slightly for the type of fixture im using. Soon as my girl stops tripping about me spending 20 bucks on some shit ill be GTG.