Solar energy reaches the cabin as visible light, ultraviolet and infrared, and infrared is the part you cannot see but can certainly feel. Kepler's nano-ceramic films are built to work on that spectrum through the glass, so the cabin heats up less and the seats, trim and screens get less ultraviolet exposure over time. Because visible light transmission is measured separately from solar heat performance, a lighter shade is not automatically a weaker film. Ask your dealer for the published figures for the exact film and shade you are considering and compare them like for like before deciding.
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