What size hood?

Hey everyone this may be a dumb question, but I'm gonna ask it anyways haha. I have a 4'X5'X6' grow tent that I am currently running a 8 bulb T5 in for veg. I'm about to switch over to flower and want to put a 600watt hps in there, what size hood do ya'll think I should run?

i would go for some sort of air cooled hood, for a tent, get the biggest you can afford, i use a 2foot by 2 foot one and it covers great.

Yes get a Air Cool hood, if you want something bad ass look for the Raptor made by Hydrofarm