Quote Originally Posted by KillerBudG
Yo thank for the input, I know I want to have the fan pulling air not pushin it. I was more interested on my passive airflow and ac cooling with 1 fan. I am just gonna figure this out and work with what I got been pretty busy lately so have not had the time to think and get situated.
Hey, KBG. Just read through the thread. While the "Y" with damper will give some added control over venting the space/light, IME it's unnecessary. If you're moving a decent volume of air, the difference in temperature between the two separate intakes will only be 3 or 4 degrees *at most*. The difference will be negligible for the purpose of cooling the bulb. Drawing your air from a single opening will simplify things, and be just as effective.

Basically what Frosted said, earlier in the thread. Just thought I'd toss in my $.02.

Good Luck! Half the fun of this hobby is figuring stuff out! :thumbsup: