Question; Is a 4" booster fan enough for fresh air..Help..

My 2x4x7 tent(56 cubic feet)has 400 watt air-cooled light with glass insert and is ducted on both ends for heat to escape. I have passive intake and the tent is in the basement, so no heat issues yet. Need to add another form of exhaust. Will a 4" inline booster fan rated at least 75-100 cfm's pull enough air up and out to replenish the air in the tent?

yes more than enough, you need to refresh the air only once every 3 minutes I beleive.