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OLED has been around for a while as the new and shining star of the world of efficient lighting sour
Form only exists through light and our perception of the world around us is totally dependent on it.
Color is basically a characteristic of visual perception, a manipulation, it is all the trickeries t
Ultraviolet (UV) sterilization is the most effective inactivation method against Covid-19. (perhaps
“The possibilities of night illumination have barely been touched. . . . Eventually, the night light