The invention relates to a method for testing a concentrated photovoltaic module comprising a plurality of sub-modules, each containing a plurality of assemblies of a photovoltaic cell and of a concentrator arranged relative to the cell in order to concentrate on the cell radiation arriving at normal incidence, in which: a plurality of almost collimated light beams are transmitted toward the module by means of a plurality of light sources coupled to respective parabolic mirrors, each light source comprising a lamp suitable for emitting a light pulse and a supply device suitable for electrically supplying the lamp, there being a turn-on delay between the triggering of the supply device and the emission of the pulse, and the supply device of each lamp is triggered at a respective instant set depending on the turn-on delay of the lamp so that the pulses of all the lamps are emitted simultaneously and received simultaneously by the sub-modules.