Some people actually cut a large hole so the dome can sit on top and the light shines through the hole, if you do this as a precaution I would line the hole with foil so you don't get a fire when you least expect it. A lot of other people buy a fixture that mounts to the enclosure. Just make sure you get ceramic and it can handle the heat you are putting through it not to mention the wattage.Gragrac":7ajdiag0 said:Robert's new viv is almost done... but one problem. I can't figure out how I'm going to mount his bulb in there! Right now his bulb is on the top of his screen, but his new viv has a solid wood top. How did other people mount the heat bulbs in theirs?