There are different types of professional home lighting systems available depending on the buyers budget.

A high end system would be an integrated lutron system where the lights can do things like account for the amount of sun light in the room and automatically dim or switch off .  Adding some fancy fixtures that could make the inside of you home look brand new. All these equipment can be expensive especially custom lighting design.

Some chandeliers can cost up to $30,000 and an  electrician can  charge about $100 per hour in some country . Installation of  high end home lighting  systems could take up to  40 hours, while simply changing some light fixtures may take about half an hour each.