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Cocheif
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| When an AC or DC current is passed through copper, saturated in phosphor, light is emitted. This is electroluminescence. DC electroluminesce has been widely used for small displays on glass in cars and similar environments, usually as bilious yellow fixed messages, keyboard backlighting and other incremental improvements on what went before. |  |
Electroluminescent lights that is put in to items to enhance the looks of items. It is also use for backup lightings and panel lightings to ensure keypad cound be seen at night.
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