Weather has a significant impact on the time solar garden lights are lit. Sunlight is the main source of energy for solar garden lights, so the duration and intensity of sunlight directly affects their charging efficiency. On clear, sunny days, solar garden lights are able to fully charge and ensure a long lighting time at night. However, in rainy, hazy or cloudy weather, the sunlight is blocked or scattered, resulting in lower charging efficiency and a correspondingly shorter light-up time. In addition, extreme weather such as heavy snow and severe cold may also affect battery performance and discharge efficiency, further reducing the lighting time. To cope with these effects, solar garden lights are usually equipped with an intelligent control system that can automatically adjust the working mode according to the weather conditions, such as reducing the brightness or extending the charging time, in order to maximize the lighting time. Therefore, weather conditions are one of the most important factors affecting the lighting time of solar garden lights.