The Phillips bulbs are the right ones for basking, but let your thermometer guide you. 65 watts is a good place to start. Raise or lower the fixture to get the correct basking temp. Some people need higher or lower wattage bulbs depending on their individual enclosure.And the it’s a sulcata hatchling I put the uvb in this lamp fixture.
They cause pyramiding.They just get to hot right or is there something worse about them?