A control device for of power sharing between at least two lighting devices and a method thereof

A method of power sharing between at least two lighting devices located in an outdoor environment, wherein each of the at least two lighting devices comprises an energy storage element arranged for providing power to the respective at least two lighting devices;

• and wherein the at least two lighting devices are connected to each other via an electric conductor;
• wherein the method comprises
• determining a state of charge, SoC, and/or voltage of the energy storage elements of the at least two lighting devices,
• controlling a first lighting device of the at least two lighting devices to operate in an up-stream mode if the SoC and/or voltage of the respective energy storage element exceeds a threshold, and controlling a second lighting device of the at least two lighting devices to operate in a down-stream mode if the SoC and/or voltage of the respective energy storage element does not exceed the threshold, wherein the second lighting device is arranged for communicating the operating mode to at least one lighting device of the at least two lighting devices,
• inferring an occupancy pattern in proximity of each of the at least two lighting devices based on historical occupancy data;
• and
• if the first lighting device have been detected to be operating in an up-stream mode, sharing power, via the electric conductor, from the first lighting device to the second lighting device based on the inferred occupancy,
• wherein the energy storage elements of at least two lighting devices are powered via a solar power source.