Abstract: The present application relates to a first lighting module (200) arranged to be mounted to a second lighting module (201). The first lighting module has a housing (204), a light source (206) and an electrical connector (218) electrically coupled to the light source. The housing (204) is configured to be coupled to a housing of a second lighting module (201) so that terminations (222) of the electrical connector of the first lighting module are brought into direct contact with terminations of an electrical connector of the second lighting module to establish an electrical connection between the first and second lighting modules. The present invention also relates to a system of lighting modules and an apparatus for connecting the terminations (132, 222) of a flexible circuit board (128, 218) to the terminations (140, 222) of another flexible circuit board or a printed circuit board (140, 218).