Rheostat

Repti Temp Rheostat - For manual heat control. With a turn of the knob, you can adjust the temperature of most non-thermostatically controlled heating devices! Plug in up to 2 compatible heating items with a combined wattage of up to 150 watts!

Turn your heaters up in the winter and down in the summer depending on your inside house temperatures! 

This is very important in controlling heat and not burning your animals! Please use a rheostat and thermometer!