Free forming/shaping plastic sheet can cool the space lower than ambient temperature without consuming energy, such as fossil fuels and electricity.
Plastic sheet can be formed and made into any shape, such as hat, plate, bottle, roof cover, shade film, etc. Under sunlight, the space under the radiative cooling sheet is cooled without energy input as well as mechanical vibration, noise and carbon emission.
Radiative cooling paint is just simple white color paint. By covering the surface of the material with this paint, the temperature of inner space can be cooled below ambient temperature without energy consumption.