Light-emitting diode (LED). An LED is a semiconductor that emits light when a current passes through it. LEDs are used extensively in lighting and for electrical devices and circuit boards. The colour of light produced by the LED depends on the semiconductor materials used | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Kail, Richard |
Taille de l’image : | 3842 px × 4553 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |