As the title suffers I’m looking for advice. My viv is 4 foot long and 16 inches high. I had an Arcadia d3 100w bulb at the basking area and a t8 10% desert running 2/3rds the length. I have been advised by the reptile shop to change the Arcadia d3 for an 80w deep heat halogen and replace the t8 for a t5 12% desert running the full length of the viv. The basking area is 12 to 14 inches height from the bulb (depending on which bulb I use). Does anyone believe these suggestions are ok. It is a 7 week old baby Rankin dragon. Many thanks