Night Lights refers to lights used to light the streets, parks and other public places at night. Although they are not the same as other types of lights used inside homes, they are still equally important for us. Night lights play an important role in ensuring the safety of citizens from accidents, thefts, and other kinds of hazards. The presence of lights in the dark provides security and peace of mind for the residents, enabling them to go about their daily activities without any fear. Moreover, night lights allow people to move around safely at night in a more relaxed and comfortable manner. They also provide guidance to people and help them increase their efficiency by lighting their way when it's dark outside. In addition, night lights help to lower the energy consumption in our homes as it is more cost-effective to light a certain area with a few efficient lamps than to use several lights at home. Furthermore, many people also consider it more attractive and pleasant to have a lighted landscape that stands out from the darkness at night. Night lights are necessary for the well-being and safety of people, providing benefits to the community and the environment. We should all strive to use them wisely, ensuring that they are sufficiently lighted at night and the energy usage is optimization to reduce the overall energy consumption.