The sunlight reaching your glass arrives as visible light, ultraviolet and infrared, and infrared is the invisible part you feel as heat. Kepler's nano-ceramic film for Tesla vehicles is designed to work across that spectrum rather than simply darkening the glass, which is why a lighter shade can still make a real difference to cabin temperature. Less heat and less ultraviolet also means less punishment for the dash, seats and trim over the years. Performance differs between films and shades, so go through the data sheet for the exact product with your dealer before you decide.
Did you know we also have information on Grafton window tinting regulations? View our guide on local tint laws