The Netherlands at night: the brightest light is in the Randstad, the north and the Wadden coast are dark
Night lights from NASA GIBS layer VIIRS_Black_Marble, a composite from 2016. The largest patch of light is in South Holland; you also see the separate cities in the east and south and, at the bottom, the light of Belgium and the Ruhr. It is an image, not a measurement per pixel.