A lighting system which automatically assigns a unique address to each lighting device and controls each lighting device assigned the unique address is disclosed. The lighting system may include a plurality of lighting apparatuses, at least one bridge coupled to the plurality of lighting apparatuses, and a lighting controller coupled to the at least one bridge for controlling the lighting apparatuses. One of the at least one bridge or the controller may generate address data for assigning an address to one of the plurality of lighting apparatuses. The plurality of lighting apparatuses may include an LED module, a connection circuit configured to control a connection between the at least one bridge and the plurality of lighting apparatuses, and a controller configured to control the connection circuit based on the address.