The beams of light, directed from the bottom towards the top, illuminate the Eiffel Tower from the inside of its structure. Since , by replacing the , working projectors that illuminated the Tower from the outside, they have been highlighting the fine metallic structure of the monument and illuminating the areas used by late-night visitors until the closing of the Tower to the public. In addition to the aesthetic aspect, it is equally necessary for the security of the late-night operation of the Tower.
