you can leave both your basking bulb and your uvb light on 12/12off. In the winter months you can do 10 on 14 off to simulate it getting dark ealier. Your 5.0 uvb is all you need and you can just use a regular housebulb, like a 60 watt will work. No need to buy any fancy basking light/ You basking light should just provide UVA, not UVB if you have the Reptisun.