Technically, the illumination is caused by 20,000 bulbs with a power of 6 W, a set of 120,000W. It lasts 10 minutes and unfolds while the tower is off, which gives it a completely different aspect. The flicker starts at the beginning of each hour, every day, from dusk to 1am, for 5 minutes. The mayor of Paris, however, warned candidates that the new project should be an extension of the flickering, it is still very popular with the public. In 2012 it was reduced from 10 minutes to 5, which allows to consider exceeding 10 years, and fortunately also because in 2012 a call for offer was launched to change this illuminations, to move on. It was therefore necessary to change the bulbs while doing structural work on lighting because it had not been planned to hold more than a year, and now it was to keep it at least 10 years! The glittering resumed by popular demand on June 21, 2003. But that was without counting on the success he had with the public who claimed him again. the new lighting embellished the Eiffel Tower: It is a flicker of the most beautiful effect, which will be stopped on July 14, 2001, more at the planned end of this enlightenment project. It appeared for the first time on Decemfor the transition to the year 2000. The twinkle of the Eiffel Tower, which is a spectacular light effect, is not a lighting in itself, it's just a temporary sight. Le public a pu l'apprécier pour la première fois le 31 décembre 1985. Il faut aussi voir que cet éclairage est le premier de la tour à être considéré comme une oeuvre d'art en lui-même, indépendament de la tour. This new lighting is automatic, sensors trigger it at dusk. It is therefore not only an aesthetic utility, but also practical. It consists of 336 high-pressure sodium projectors that provide arranged along the joists of the tower, they are oriented so as to project cones of light on the important points of the structure, but also to illuminate the parts specific to the visit. These projectors were changed in 2007, in 2011 and in 2015, since they have a lifespan of 4 years. It is therefore an internal lighting of the tower. The new lighting consists of 336 sodium floodlights installed in the structure of the tower, which gives it the golden light of the most beautiful effect. It is characterized by a warm yellow-orange light. The current lighting of the Eiffel Tower dates from 1985, it is the last modification in date of the illumination of the monument. The usual lighting of the tower should not be confused with the play of light that takes place from dusk to 1am, for 10 minutes, every day: This effect is no longer considered an artistic show, which Moreover, it had to be temporary but remained, the visitors asking for it again. It is this one that is in place today, a large number of projectors illuminate the metal structure of the interior. these projectors remained until 1985, the year of the end of the tower renovation, which saw a new lighting be installed. This light was already worked, the building stood out better. This time she was taking light from powerful searchlights all around the tower, in pits. It was in May 1958 that the lighting was further improved. It was also the first time the tower had taken on special colors: This year, it was painted blue, white and red. On this occasion again the lighting of the tower was modified with the addition of a multicolored luminous globe under the first floor. In 1937 took place another world exhibition (which did not bear this name, but it was its equivalent). Finally there was no gas on the monument, a particularly dangerous product. The first important transformations took place for the 1900 World Exhibition, 11 years later, for which Eiffel spent its entire turn on electric lighting. Then the Eiffel Tower undergoes regular transformations. There were still spotlights, and especially a lighthouse at its peak, a bit like today. During its construction electricity was widespread, but not enough to be fully used, the Eiffel Tower was lit by gas lights, they were numerous enough for visitors to roam without being too dark. The lighting of the Eiffel Tower has always been important, because of the size of the building to illuminate.
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