Ball pythons don't need UVA/UVB lighting. Just natural light is good enough for them or really no light is fine too. People keep them in tubs with no lighting at all and they do just fine.

The most important thing you'll want is a UTH connected to a thermostat to keep a constant temperature or at the very least a rheostat.
Invest in a temp gun (they're pretty cheap).

There's a lot of good info on this site, so just poke around and read up. You found this site, so you're already on your way!