Most property holders with moderate home improvement aptitudes can wire our thermostat with two connectors for their home safety. It is joined the exchanged line terminal on the heater. When heat is required, the regulator interfaces these wires together, applying the full voltage to the exchanged line terminal. This enacts the heater. In addition, our thermostat with two connectors are appropriate for mains voltage, however, care is required while choosing t5his regulator for mains applications. Most of our models have a white and red encased in a dark shaded protected covering. Interface the white wire on the heater and indoor regulator for better results. Not all indoor regulator has an AC wire, which is commonly blue. However, our thermostat with two connectors has AC wire for safety and functionality.