Visible light transmittance: Visible light (380-780) through the percentage of the glass/window film composite layer.

Visible light reflectivity: Visible light (380-780) percent reflected by the composite layer of glass/glazing membranes.

Solar penetration Rate: The percentage of solar energy through the glass/glazing membrane composite layer.

UV-Barrier Rate: ultraviolet (280-400) The percentage of the composite layer reflecting the glass/window film.

Solar reflectance: The percentage of the solar energy being reflected by the glass/foil composite layer.

Solar Absorption Rate: The percentage of solar energy absorbed by the glass/foil composite layer.

Total solar penetration Rate: solar energy through the glass/glazing membrane composite layer and absorbed into the internal radiation of the total solar energy.

Total Solar reflectance: That is, the heat insulation rate, it is the solar energy by the glass/window film composite layer reflecting part and absorbed into the external radiation of the total solar energy.

Masking coefficient: The total solar penetration rate of glass/window film composite layer relative to glass.

U value: hourly, internal and external temperature difference each degree, through the amount of thermal radiation per square foot.