Solar energy reaches the cabin as visible light, ultraviolet light and infrared, and the infrared part is the one you feel as heat even though you cannot see it. Kepler's nano-ceramic film is engineered to work across that spectrum rather than simply darkening the glass, which is why a lighter ceramic shade can still make a real difference to comfort. Less solar heat entering through the windows means a cooler cabin, less glare at the wheel and less ultraviolet exposure for the interior surfaces. Compare the published data for the exact film and shade to see how each option performs.
Ask a local tinter whether they carry Kepler film or can get it. For more information, see quick quote.