push or pull?

so I have a centrifigal coming in soon to run through my air cooled 600 and 1000w lamps, does anyone know if it is better to push or pull the air through the lamps? I would guess that it doesn't matter but just figured I would put it out there. Thanks in advance.

-regrets.

I pull through mine.

A centerfuse fan will work both ways. It would deoend on if youare able to exhaust the hot air from the light or just cooling the light. The ideal way would to be to suck the hot air away from the light and install the fan half way between the intake and exhaust. Mine is at the bottom of the six inch flex blowing into the air conditioner.
https://www.rollitup.org/members/buceye-albums-2nd-cabinet-picture4783-final-scrog-layout.jpg

doesn't matter if your ducting is well sealed. better to push air if your seal is poor