You are making this harder then it needs to be.
Hang the light at 12 to 18 inches and get him outside as much as possible for natural sunlight but always having shade available.
Otherwise buy a solar meter so you can get the exact amount of uv you want.
The easier you can do it right the more you will enjoy having him.
Hang the light at 12 to 18 inches and get him outside as much as possible for natural sunlight but always having shade available.
Otherwise buy a solar meter so you can get the exact amount of uv you want.
The easier you can do it right the more you will enjoy having him.