welcome to chameleon ownership! Most of use the Reptisun or Reptiglo 5.0 tube style bulbs. There are other options out there but that is the most popular among members. Basking spot for panthers can be be in the high 80's to about 90 for a young panther and you can bask an adult up to about 95 degrees. Just watch and see if you see your chameleon gaping(mouth open) and lower your temp. I bought my fixtures at lll reptile online. I know people use fixtures from home depot too which I believe are cheaper.