A method of installing at least one lighting module including: - a ribbon-like containment body with a web wall having a first and a second face opposite to each other and a pair of side walls extending sidewise of the first face of the web wall to define a channel-like shape of the containment body (12, 14), - a ribbon-like mounting board for mounting light radiation sources, the mounting board being arranged in the channel-like shape of the containment body (12, 14) with a mounting surface facing away from the first face of the web wall of the containment body (12, 14), and - at least one light radiation source mounted on the mounting surface of the mounting board for projecting light radiation from the channel-like shape of the containment body (12, 14), wherein the lighting module includes a pair of hook-like profiles protruding from and along the second face of the web wall of the containment body (12, 14) to permit mounting of the lighting module by hooking to a mounting element, the method including: - providing a ribbon-like mounting element having a transverse width corresponding to the distance between the hook-like profiles of the lighting module, - coupling the lighting module to the ribbon-like mounting element by hooking the lighting module to the mounting element by means of said hook-like profiles, characterised by - selecting the ribbon-like mounting element as a plurality of wire-like elements coupled into a strip, preferably along the sides thereof, wherein said wire-like elements include an electrically conductive material, said strip consisting of a mass of insulating material in which said wire-like elements are embedded, whereby said wire-like elements are adapted to transmit electric signals along the lighting module. - a ribbon-like containment body with a web wall having a first and a second face opposite to each other and a pair of side walls extending sidewise of the first face of the web wall to define a channel-like shape of the containment body (12, 14), - a ribbon-like mounting board for mounting light radiation sources, the mounting board being arranged in the channel-like shape of the containment body (12, 14) with a mounting surface facing away from the first face of the web wall of the containment body (12, 14), and - at least one light radiation source mounted on the mounting surface of the mounting board for projecting light radiation from the channel-like shape of the containment body (12, 14), - providing a ribbon-like mounting element having a transverse width corresponding to the distance between the hook-like profiles of the lighting module, - coupling the lighting module to the ribbon-like mounting element by hooking the lighting module to the mounting element by means of said hook-like profiles, - selecting the ribbon-like mounting element as a plurality of wire-like elements coupled into a strip, preferably along the sides thereof, wherein said wire-like elements include an electrically conductive material, said strip consisting of a mass of insulating material in which said wire-like elements are embedded, whereby said wire-like elements are adapted to transmit electric signals along the lighting module.