For the powersun the cage is 6*3*2.5, I have tempguns to decide height of basking spot. I was going to leave the tube for the 55. Thank you for responding. I changed his bulb a month and a half ago from repta sun 10.0. I notice that the lights put off two completely different colors( repta sun by zoo med and repta glo by exo terra). I changed my beardies to the same tube bulbs at the same time, should i discontinue my use. What would you do? Money is an issue but so our my herps, a much bigger issue.

William Davis