Dude make sure you post pics and ask a million questions if you have too. We will do our best to help you get your set up correct. But the sooner you get it set up the better off your torts will be.
Okay make sure you spend the next couple day charting the temps so you know if you need to move your lights or Che.
Make sure you know each of these 4 temps
Warm side
Cool side
Basking temp
Night time low
It's very important with that species to have all 4 of them temps correct
Since the box traps the heat it's already warm without the light so when I put the reptile thermometer the mvb isn't always on is that bad since the tortoises aren't exposed to the uvb Ray's for long? And I know the temps they're just a bit warm because I want the light to be on longer so the tortoises can have more basking time and uvb ray exposure