I have a 120 gallon habitat with a 150 watt basking bulb and a T5 HO UVB bulb. Is there a better basking bulb? Also, I am preparing for winter and the house to be cooler so I am researching heat sources. What is the best heat source? I have a Herpstat thermostat and just ordered her a slate topped hide for the warm side of her habitat. I am reading conflicting info on the CHE and DHP bulbs. Also, I have read where there should be a third type of light source? My habitat has a a screen top so my basking bulb is in a dome that sits on the screen. Can you do the same with the heat bulb?