We have recently completed an enclosure for our bearded dragon. He moved in this spring. The only issue so far is the basking bulb has been burning out extremely quickly. I finally kept track with this last one and it didn't even last a month. It is mounted to the wooden ceiling with a ceramic fixture attached to a plastic light box. We had a night bulb in the other fixture but realized we don't really need that, especially in warmer weather, so we've just been using one side. We've tried the ZooMed and All Living THings 150w bulbs. Any ideas why it would be killing bulbs so quickly?