Outdoor lights, as one of the most important accessories for outdoor activities, have gained more and more attention in recent years. Outdoor lighting has a more important role in people's lives, because it is safer and more convenient for people to do activities in outdoor places at night, avoiding the darkness and increasing the security of people and property. Outdoor lights can be divided into two categories: landscape lights and security lights. The landscape lighting is mainly used for decoration, like pavilions, parks, etc., while the security lights are mainly used to detect suspicious people or animals, thereby providing more security to people. Apart from their practical uses, outdoor lights can also bring a warm visual experience to people. The addition of outdoor lighting can make the environment more beautiful and romantic. All in all, outdoor lights are an indispensable part of outdoor activities, and their practical functions or beautiful scenery are gaining more and more attention from people.