okay. does my basking bulb have to be on the same side as the uvb? i assume in the wild they get there uvb and bask directly from the sun. or would it need to be placed somewhere else?Yes - that is a wide hole type - the fixture can sit on top of the screen w/ a piece of basking decor directly under it 8-10 inches - change the bulb out in about 10-11 months -