Depo Projector condensation

[CassVtx]

Ok I just got the depo black housing projectors today and i also got the h7 bulbs for it. When i took the rubber piece off in the back to replace the stock bulbs with the h7 bulbs and then drove around a little bit with them in i noticed later that night i had condensation already. Is it because i took the peice off to replace the bulb or is it the headlight itself? and How can i fix this before i go crazy

[Milkit18]

i get condensation too but its not bad it seems to get less and less. make sure the rear rubber covers are secured tight.