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AIzaSyAYiBZKx7MnpbEhh9jyipgxe19OcubqV5w
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20 gen 2006 anni - Nuevo evento

Descrizione:

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.

Aggiunto al nastro di tempo:

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ByBastian Quillay Tapia
19 ago 2019
0
0
134

Data:

20 gen 2006 anni
Adesso
~ 19 years ago
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