Hello. I have mostly everything I need for my panther chameleon but I have not ordered anything when it comes to lighting. I will be having a 24x24x48 cage. Can T5 have negative effects on chameleons? Which is better...T5 or t8? Does the age of the chameleon matter when to use T5? I read that T5 may bother young chameleons. I was thinking with the big cage a T5 would be helpful. From what I have read the I would get the reptisun 5.0 in either T5 or t8 unless anyone has a better idea.