Theatre uses UV-C lighting to help get Covid-secure 16 December 2020 The Cultural and Congress Centre, a major performance and conference venue in Portugal, has become one of the first venues in the country to use UV-C lighting to sanitise its performance and public spaces A MAJOR theatre in Portugal is using UV-C lighting to sanitise its interiors in a bid to tackle the coronavirus. The Cultural and Congress Centre (CCC), a major performance and conference venue in Caldas da Rainha, has become one of the first venues in the country to use the technology to sanitise its performance and public spaces and maximise the safety for its spectators, artists and employees.