Yep, just a regular old incandescent bulb.
What size is your cage?
I use 40 and 60watt bulbs but it really depends on several things.
If I were you, I would get an assortment of differnt sizes plus a digital therometer with a probe.
im already in the process if getting different watt bulbs but wasnt sure which bulbs.thanks for your help.
btw my setup is 5ft high by 2ft wide by 1ft 9in deep.