There are commentaries which can impress the tourists, but the dazzling light shows are quite awesome and brilliant. These lightings are at the backdrop of the Sphinx and the Pyramids. Such shows are provided thrice a night and in three different languages. One can also call ahead to make sure of the timing of such performances. The desert is cold during that time, so one has to make sure to wear warm clothes.
Its like a show they do it for the tourist to watch when they are bored so its for fun the make sounds nice color of light and nice fair shows and all of us really like it. It is... more the most nicest thing you should or could watch.