Agree with Redtails 100%
Even without a speed reduction, the high velocity of the air will do no harm.
At times, I've had to run my 6" wide open...pulls hard enough that I find carbon bits from the filter, on the glass inside the reflector. Unless somebody pours BBs into your intake, the bulb will be fine.
It really doesn't make much difference which direction the air flows through the hood. But, I think most folks have the air entering opposite the bulb, maybe for fear of particulates suspended in the airstream?
It's overkill, right now. But as you mentioned, you may end up with a filter down the road, and the little 200cfm fan will certainly be inadequate.
Also, if venting the entire space through the hood, make sure to pull the air through the hood. If you must push it, double check the seals of the reflector.
I can picture in my mind a world without war, a world without hate. And I can picture us attacking that world, because they'd never expect it
- Jack Handey