LEDs, also called light emitting diodes, are much more than just light bulbs: they are definitely the new frontier in the world of lighting. I am able to use light in a way that has never been done before. LED lighting is considered the most economical in terms of energy and lasting compared to all other standard lighting means (incandescence, neon or other gases and metal vapors). The luminous efficiency, i.e. the ratio between the luminous flux and the absorbed electrical power, expressed in lumens per watt (lm / W) is up to ten times better than that of incandescent and four times greater than that of so-called low-consumption lamps. . Unlike normal lamps, the LED is absolutely devoid of internal filament, and this peculiarity allows it to have a much longer duration and reliability than the old technologies. An alternative lighting system that today more than ever, with the continuous awareness of energy saving, is the choice of the future.