अपने मन को रात प्रकाश का रंग समायोजित करें। समय स्विच के साथ रात प्रकाश।
According to research colors affect on human frame of mind like e.g. soothing, cheerful or supportive concentration.
There is an application created using this knowledge to enable users to adjust the color of night light to their moods or necessitas. For ease of use in the application you can set the time switch. You need only your smartphone and the piece of paper to create bed light with the colour suitable for your needs.