Lighting fixture assembly for mounting on a lighting mast, in which the lighting fixture assembly comprises a plurality of lighting fixtures, which are each provided with a plurality of LED light sources (LED = Light-Emitting Diode) and are adjustable with respect to each other in a mutual orientation over at least two axes (X-Y) in order to produce a specific light beam, the lighting fixture assembly comprising: - a housing part, comprising at least one control unit for electronically actuating the plurality of LED light sources in the plurality of lighting fixtures, and further comprising a mast coupling piece which is arranged to secure the housing part to the lighting mast, in which the housing part is arranged to pivot the plurality of lighting fixtures over a pivot point in order to align the light beam; - a mounting part, comprising at least one at least partly cylindrical tube part which is connected to the housing part and is arranged to secure the plurality of lighting fixtures so as to be adjustable over the at least two axes (X-Y); - a plurality of fixture coupling pieces corresponding to the plurality of lighting fixtures, which are each arranged for coupling one of the lighting fixtures to the mounting part, wherein each fixture coupling piece is provided with connecting means on a first and second side for connecting it to the tube part on the first side and to the lighting fixture on the second side, respectively, in which the tube part is arranged to connect at a fixed predetermined position on the periphery of the tube part to the connecting means of the first side of the fixture coupling piece for determining the adjustment of the first adjustable axis, and in which the second side of the fixture coupling piece is arranged to connect at a fixed predetermined position on the periphery of the second side to the lighting fixture for determining the adjustment of the second adjustable axis. - a housing part, comprising at least one control unit for electronically actuating the plurality of LED light sources in the plurality of lighting fixtures, and further comprising a mast coupling piece which is arranged to secure the housing part to the lighting mast, in which the housing part is arranged to pivot the plurality of lighting fixtures over a pivot point in order to align the light beam; - a mounting part, comprising at least one at least partly cylindrical tube part which is connected to the housing part and is arranged to secure the plurality of lighting fixtures so as to be adjustable over the at least two axes (X-Y); - a plurality of fixture coupling pieces corresponding to the plurality of lighting fixtures, which are each arranged for coupling one of the lighting fixtures to the mounting part, wherein each fixture coupling piece is provided with connecting means on a first and second side for connecting it to the tube part on the first side and to the lighting fixture on the second side, respectively, in which the tube part is arranged to connect at a fixed predetermined position on the periphery of the tube part to the connecting means of the first side of the fixture coupling piece for determining the adjustment of the first adjustable axis, and in which the second side of the fixture coupling piece is arranged to connect at a fixed predetermined position on the periphery of the second side to the lighting fixture for determining the adjustment of the second adjustable axis.