A light-emitting diode (or LED) emits a monochrome light when stimulated by an electric current.

Compared to ordinary light bulbs, LEDs are more cost-effective because they consume less energy and last up to 20 times longer. The benefit that LED lighting provides is immense, especially in situations in which light is needed for many hours consecutively, such as in hotels and hospitals or on roadways (esp. in tunnels or underpasses), where operating costs can be significantly reduced.

LED lighting comes with a range of benefits, both financially and in terms of general wellbeing:

• Reduction in electrical bills: reduction of between 50% and 80% compared to traditional light bulbs;
• Durability: last up to 20 times longer than traditional light bulbs;
• Luminosity: 4 times greater than traditional bulbs;
• Immediately on: unlike traditional incandescent or compact-fluorescent bulbs, which take some time to reach maximum luminosity;
• High resistance: to humidity, heat, vibration and impact;
• Low maintenance costs: thanks to their great durability;
• Benefits for the user: no infrared or ultraviolet radiation that can be harmful after lengthy exposure; no toxic gases or other toxic substances; not harmful to the eyes in the event of direct exposure;
• Environmental benefits: contains no mercury, unlike compact-fluorescent bulbs, which must be disposed of as hazardous waste; also reduces light pollution in urban settings;
• Maximum versatility.

LED lighting can be used in a great many places and industries because its light can be accurately oriented, doesn’t generate heat and can emit the entire spectrum of color.

LEDs can be used as lighting both outdoors and indoors and are suited to all applications (homes, hospitals, schools, workshops, factories, museum, retail settings, parks, public spaces, and so on). They can also be used to create special effects, such as to enhance the esthetics of buildings or urban areas or to attract attention to specific details.