I did a little research yesterday and for a heat bulb a dimmer thermostat is best aparantly, but I also found that pulse thermostats are advised with heat emitters so I have ordered one and the appropriate fixtures so we will see how that goes.
Also you asked how big my terrarium is, It is an exo terra 18x18x24 high. The heat emitter I ordered was a 60 watt, I was lucky enough to find a brand new one on Ebay for pennies.
One other question, do you use a night healt bulb, I did buy one but just wanted to check.
Thanks.