Passive radiative cooling PRC as an electricityfree and environmentally friendly cooling strategy is highly desirable in improving the global energy landscape Despite numerous efforts most designs for

Passive radiative cooling (PRC) is a cooling strategy that doesn't require electricity and is environmentally friendly. However, most designs for PRC focus on improving daytime cooling performance, leading to overcooling at night. To address this issue, researchers have developed a temperature-adaptive thermal management system by integrating PRC and temperature control of room-temperature phase change material. The resulting phase change material-enhanced radiative cooler (PCMRC) can adjust its cooling performance according to the temperature of day and night, achieving an average subambient temperature drop of 6.3 °C under direct sunlight and an average temperature rise of 2.1 °C above ambient temperature at night. The PCMRC reduces the temperature difference between day and night and shows great promise for regulating passive radiative cooling, expanding its applications.