The landscape of the competition in the light in actionThe landscape of the competition in the light in action
A silhouette of a man covering a light source with his handA silhouette of a man covering a light source with his hand
Blurred highlights of night light in a night gladeBlurred highlights of night light in a night glade
Свет от какого-н. источника. Техническое оборудование, дающее свет. То или иное объяснение, истолкование.