LEDs or light-emitting diodes were first produced in 1968 and are semiconductor light sources. They are commonly used as indicator lamps in many devices but are also increasingly used for other purposes as well. Around the house, LED lights can be used as accent details for cove lighting or for highlighting a certain décor or architecture feature.
LEDs present several advantages. For example, they are very efficient as they emit more light per watt than incandescent light bulbs. Also, the efficiency of LED light fixtures is not affected by shape and size. LEDs can also emit light of a certain color without using color filters. They can be very small and can be easily attached to printed circuit boards. They also light up very quickly and are ideal for frequent on/off cycling. Another great advantage is the fact that LEDs are difficult to damage with external shock.