Lighting control system for display the amount of electricity used

PURPOSE: An illumination control system is provided to monitor power use amount by measuring on-off time of illumination load and calculating the power use amount. CONSTITUTION: An illumination control system comprises one or more illumination loads(10). A loading control unit(20) controls the lighting of the illumination load. A power measuring unit measures on-off state time of the illumination load and calculates individual and whole power use amount. A lighting control monitoring program is installed in a system controller(30). The system controller executes a power use amount monitoring action of the illumination load. A screen display unit(60) indicates lighting condition and electric energy of the illumination load according to the control of the system controller.