The invention relates to a vehicle light module comprising a headlight unit defining an internal volume (22), at least one heat generating device placed in the internal volume (22) and a cooling system (4) configured to evacuate heat from the internal volume (22), to the outside, characterized in that the cooling system (4) comprises: - an intake pipe (41) provided with an inlet mouth situated at the exterior of the internal volume and an internal mouth (415), located in the internal volume (22), and a discharge pipe (42) provided with an internal mouth (424), located in the internal volume (22) and an outlet mouth (421), located outside the internal volume (22), at least one fan placed in one of the inlet pipe (41) and the exhaust pipe (42) and configured to create air circulation from the inlet mouth, to the mouth outlet (421) through the internal volume (22).
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