This is what my babys viv looks like its only a 10gal because they are 7 weeks and small. You have the long tube UVB (Reptisun 10.0) then to the right of the top i have the basking light and the probe sits under the light so it tells me how hot it is where they are basking to make sure they dont get to hot. Babys need 105 to 110f to digest and grow. You can use a reg household bulb for the basking. We had to raise their basking area to get the temp we needed them to be so we got a ramp with suctioncups to it can be moved up or down depending on the basking temps. Easy thing to do is to move your basking area to one side of the tank and make what ever they are going to bask on higher use rocks cardboard tile wood to raise it up to one side.
We are using for him 2 heat lights because his basking stays at 105 on his logs but at the cool end it was staying in the 70s since his tank is deep we added more heat to the left side to bring it up to 85f.(the dome to the left needs to be over more kids always forget to move it back :| ) We just got Zero so I have his
UVB light on the way. I ordered all of mine from
http://www.petmountain.com/product/...bs/504983/zoo-med-reptisun-10.0-uvb-bulb.html And went to a hardware store and picked up the fixture. Your baby should be ok with no UVB intill you can get one rather than using the coil.
Hope showing the pictures helped explain it.