Electroluminescent lighting (EL) devices have low power consumption and have a wide range of applications such as their use on advertising boards and safety signs. Because an EL layer can be very thin (around 1 mm thick), it can be used as decoration added to everyday items, including clothing and accessories such as bags and earphone cords.
It is a light source technology used in exit signs that provides uniform brightness, long lamp life (approximately eight years), while consuming very little energy (less than one watt per lamp).
An EL is essentially a display of segments or dots of transparent conductive electrodes separated by a thin dielectric containing a luminescent phosphor. Application of AC voltage across opposing electrodes will cause the dielectric to glow with a characteristic bluish-green light.
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