In these days, living in cities, it is hard to find a clear sky full of stars at night. Darkness is totally overwhelmed by the street lights, shop lights, car headlights, and even the skyglow produced by large concentrations of lighting. But in the darkness of the night, the beautiful night lights can bring back a starry sky, far away from the chaotic urban. Night lights refer to the process of collecting, condensing and redistributing light from a set of lights at night. Today, people are utilizing night lights in more ways than just decoration in order to beautify our cities and villages. It is often used to turn dull alleys and unlit parks into appealing community gathering points. Wherever night lights are employed, they bring more than just illumination. By having the right color combination and intensity, these lights can transform the spirit of a public space while also making it more inviting. There is no doubt that night lights can add charm and evoke a sense of playfulness and joy. Night lights can be divided to two categories: electric and sustainable. Electric lights show the most obvious and immediate results. They are widely used for decorative purposes. On the other hand, sustainable night lights usually make use of renewable resources such as solar panels or wind turbines to power the lighting systems. Besides offering the benefit of saving energy, these lights also do not create light pollution. In conclusion, night lights can be very beneficial and bring joy and fun in our lives. Not only do they bring light to our dark streets, parks and alleys, but they can also increase our sense of safety and even bring a starry sky back at our fingertips.