Lighting& Heat

One of the most important features of an indoor enclosure
Is a UVB full spectrum light (this is not a heat source?)
But provides UVB rays or wavelengths similar to that of the sun, which will help against Metabolic Bone Disease and help with growth
of a healthy Hatchling
it must be placed no more than 30cm from base of enclosure
as the further away the weaker the wavelength is
Turtles require another form of heat source,
A aquarium heater works well 26' >28"
if using a basking light it should be control by a thermostat ,
You can never under estimate the true value of natural sunlight.