One of my greatest finds was a basking light fixture with a dimmer switch.... I think I got maybe 5 or 6 bulbs and was getting frustrated cause none of them would get warm enough. I ended up with my dimmer fixture with a 100 watt bulb, and I can turn it down or up according to the temperature in my house by using my temp gun to check it everyday, and I can maintain that 86-88 degree range easier.