Hi. I am getting ready to build a cage. I notice that people put their basking bulbs into dome sockets like these: while they put their ceramic heaters in the wire cage sockets like these: Is there a reason for this? Or is this common practice only? Can I put the ceramic heat emitters in the dome type sockets like the first picture above safely? Also, I get my dome sockets here locally easily but I have to send off for the wire type fixtures. Can someone please tell me how tall the wire type fixtures are from bottom to top? I need to know the space I need to allot it.