Eiffel Tower at night, Illuminations & light show – OFFICIAL Website

Unveiled on the 31st December 1985, invented by Pierre Bideau, an electrician and lighting engineer, it consists of 336 projectors equipped with high-pressure, yellow-orange sodium lamps.

This form of illumination, which has been met with unanimous, worldwide success, was the starting point of a nocturnal revival of monuments, in Paris as well as in the cities of France and the world.

The beams of light, directed from the bottom towards the top, illuminate the Eiffel Tower from the inside of its structure. Since 1958, by replacing the 1,290 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.