Load control device configured to operate in two-wire and three-wire modes

A load control device configured to control an electrical load, the load control device configured to be coupled between an alternating-current (AC) power source and the electrical load, the load control device comprising:

• a hot terminal adapted to be electrically coupled to a hot side of the AC power source;
• a dimmed-hot terminal adapted to be electrically coupled to the electrical load;
• a neutral terminal;
• a power supply capable of conducting a charging current through the electrical load;
• a switching circuit configured to be rendered conductive and non-conductive to control when the charging current is conducted through the electrical load;
• and
• a control circuit configured to determine whether the load control device should operate in a two-wire mode or a three-wire mode, the two-wire mode corresponding to the neutral terminal not being connected to the neutral side of the AC power source, the three-wire mode corresponding to the neutral terminal being connected to the neutral side of the AC power source;
• wherein the control circuit is further configured to:
• based on a determination that the load control device should operate in the two-wire mode, render the switching circuit conductive to allow the charging current to be conducted through the electrical load during positive half-cycles of an AC mains line voltage generated by the AC power source;
• and
• based on a determination that the load control device should operate in the three-wire mode, render the switching circuit non-conductive to prevent the charging current from being conducted through the electrical load during the positive half-cycles of the AC mains line voltage.