On rainy days or in seasons lacking sunshine, we all feel unhappy. Researchers at an Italian university have spent ten years simulating sunlight and sky ceilings that realistically simulate real sunlight and sky colors, from background color to spectrum, and are only a few millimeters thick. If your home is not blessed by sunlight, and you are a person who likes the feeling of natural sunlight, you might as well install one and feel the homemade "natural light". For details, please visit the official website: http://www.coelux.com/
