? about setting up induction space

I've decided to go with inda gro 420's, do i need to have a light proof room for veg and flower or would a tent that had the door opened every once in a while be ok. i know to not have mh bleed into the flower room and vice versa but wasn't sure of the importance of this with induction. thanks.

Its the same with any lighting. You don't want light getting in the tent when the plants are sleeping.