jueves, 20 de marzo de 2014

Cómo ahorrar energía eléctrica



Unos consejos que todos deberíamos seguir por el bien de todos y del medio ambiente.
www.youtube.com/watch?v=MFqsYkz2C-4

TASK LIGHTING


TASK LIGHTING




Often task lighting refers to office lighting, where the task light is used to increase illuminance on the reading area. However, the illuminance level is not the only factor governing visibility. Contrast is also important, and a poorly positioned light source may cause contrast reduction, resulting in loss of visibility.