The disclosure is directed to an obstruction lighting and power line control system. The system includes at least one light source, at least one controller coupled to and configured to control the at least one light source, a power line cable providing power to the at least one light source, and a power supply coupled to the power line cable and configured to provide power to the at least one light source over the power line cable. The disclosure further includes a system controller configured to control the power supply to provide power over the power line cable to the at least one light source and the at least one controller that indicates at least one of the following: operating parameters and operating modes.
