A much larger choice available, these dimming thermostats are more advanced, and are capable of controlling light emitting bulbs. There is a high-range option available for those temperatures which need to be maintained slightly higher.
Dimming Thermostats are a little smarter, incrementally increasing or decreasing the amount of power sent to your heating equipment depending on how above or below the temperature is from your optimum desire. This means that the temperature in your reptile habitat is more likely to be consistent than when using an On/Off variant.