A method of mounting a lighting device on a mounting surface, the method including: - providing a lighting device, including: - a strip-like carrier member with first and second opposed faces with light radiation sources provided on said first face, and - a strip-like profiled member having a pi-shaped cross section including a channel-like central portion with a bottom wall and lateral side walls, wherein: - said strip-like carrier member is arranged in said pi-shaped profiled member with said first face and said light radiation sources facing outwardly of said central portion and said second face facing the bottom wall of said channel-like central portion, - said pi-shaped profiled member includes two extensions sidewise of said central portion to provide lateral fixing formations for the lighting device, - both of said carrier member and said pi-shaped profiled member are flexible, - above said strip-like carrier member there is provided a potting mass which seals the channel-like profile of said central portion of the strip-like profiled member by enclosing said strip-like carrier member within, - providing a mounting housing including a strip-like body having a longitudinal cavity therein, wherein said longitudinal cavity includes two parallel side surfaces and a bottom surface with opposed grooves extending sidewise of said bottom surface longitudinally of the strip-like body, wherein said grooves are adapted to receive said sidewise extensions of the pi-shaped profiled member of said lighting device, - applying said mounting housing on said mounting surface, - coupling said lighting device to said mounting housing by causing said sidewise extensions of the pi-shaped profiled member of the lighting device to extend in said opposed grooves of said mounting housing. - providing a lighting device, including: - a strip-like carrier member with first and second opposed faces with light radiation sources provided on said first face, and - a strip-like profiled member having a pi-shaped cross section including a channel-like central portion with a bottom wall and lateral side walls, - said strip-like carrier member is arranged in said pi-shaped profiled member with said first face and said light radiation sources facing outwardly of said central portion and said second face facing the bottom wall of said channel-like central portion, - said pi-shaped profiled member includes two extensions sidewise of said central portion to provide lateral fixing formations for the lighting device, - both of said carrier member and said pi-shaped profiled member are flexible, - above said strip-like carrier member there is provided a potting mass which seals the channel-like profile of said central portion of the strip-like profiled member by enclosing said strip-like carrier member within, - providing a mounting housing including a strip-like body having a longitudinal cavity therein, wherein said longitudinal cavity includes two parallel side surfaces and a bottom surface with opposed grooves extending sidewise of said bottom surface longitudinally of the strip-like body, wherein said grooves are adapted to receive said sidewise extensions of the pi-shaped profiled member of said lighting device, - applying said mounting housing on said mounting surface, - coupling said lighting device to said mounting housing by causing said sidewise extensions of the pi-shaped profiled member of the lighting device to extend in said opposed grooves of said mounting housing.