Both of the eziPLUG Thermostat's (part of the ezi range) are an excellent products that are high quality and multipurpose.

The hot or cold Thermostat is an excellent way to reduce your power usage and keep an optimum temperature in your room, whereas the Cold Thermostat with built in Fan Speed Control allows you to operate at two entirely independant temperature settings, so the difference between day and night can be controlled.