Sunlight collectors are small half-spherical devices characterized by an advanced optical collection system. They collect a higher quantity of natural light in comparison with any other type of skylight and channel it into the rooms. They differ from the systems with fixed angle because they have a “variable” structure and therefore able to introduce a higher amount of sun rays into the rooms. Their special technological design has made it possible to install millions of units without any damage resulting from infiltration. The sunlight collectors are mounted on robust and elegant flashings in pure copper, have a very low impact on the environment and are the ideal solution for lighting problems in dwellings located in dark historical centres.