I use a combo deep domed lamp with a high wattage basking bulb and some random bulb i found in my basement (other basking light stopped working). It makes the air temperature around 60 to 65 degrees and the surface temperature of my substrate is around 90 degrees right under the lamp but it goes down to ~70 degrees at the edge of the tank during the day. You could use a red or blue basking bulb if you want to also heat up the tank during the night.