Solar energy reaches your car as visible light, ultraviolet and infrared, and infrared is the invisible part that accounts for much of the warmth you feel through the glass. Kepler's nano-ceramic films are engineered to address that spectrum rather than simply darkening the window, which is why performance and shade are separate considerations. In practice that means a cabin that heats up less while standing in the sun, less glare on the road, and less strain on the air conditioning. Ask your installer for the technical data on the exact film and shade so you can compare like with like.
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