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20 янв 2006 г. - Nuevo evento

Описание:

Se producen los primeros diodos emisores de luz con 100 lúmenes por vatio. Esta eficacia solo puede ser superada por las lámparas de descarga de gas.

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ByBastian Quillay Tapia
19 авг 2019
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20 янв 2006 г.
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~ 19 г назад
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