Les LEDs dans l'éclairage

This article presents high-brightness LEDs produced today. It recalls what its main advantages are, and explains how the invention of blue LED was the factor that triggered a mad rush to performances. It then presents a status on the current performances of LEDs and deals with the advantage of the latter versus incandescent lamps from the energy consumption point of view.The use of LEDs, however, requires some precautions that are reviewed in the following. Then a simple economic tool commonly used in costs of lighting estimation is presented and discussed so that the reader can use it. Finally the end of the article reviews the progress expected for LEDs in the coming years.