As a key component of intelligent transport facilities, solar road studs play a crucial role in enhancing road safety, guiding traffic flow and enhancing visibility in low-light or adverse weather conditions. Whether they are used to warn of bends on motorways, separate lanes on urban roads or guide country lanes at night, they provide clear path markings for drivers and pedestrians through reflective or active light-emitting features. However, understanding their lifespan not only helps buyers to make informed purchasing decisions, but also helps users to plan their maintenance intervals and costs to ensure that the studs continue to perform.