ok, so i really want to move my geckos into sterilite tubs with lamps... i got the fixture no problem but the bulb is tricky... i tried to find a colored bulb at lowes and all they had was halogens and its doesnt put out enough heat... then i went to petsmart. i got an exo terra night glo bulb thats 75 watts and it goes up to like 125 degrees. i put it on my rheostat and it didnt turn it down at all! (the rheostat was on the lowest setting. im trying to just extend the distance from the enclosure to the lamp so hopefully that works. any body got any bulbs that work for them? maybe any that you can order online?