Headlights are made from Polycarbonate, a type of extremely tough plastic. Polycarbonate is ideal for deflecting stones and other road debris. Unfortunately in harsh UV rays, bare polycarbonate becomes porous, discolors to a yellow/brown color through the lens, and develops little cracks or splinters known as ‘crazing’.To combat this problem, every vehicle manufacturer from Ford to Ferrari applies a UV protective Hard Coat over the polycarbonate headlight lens. This coating protects the headlights from discoloring and crazing. Due to Australia’s harsh UV rays, this factory protective coating will gradually degrade and begin to discolor, leaving headlights looking cloudy and dull and limiting light output. This not only affects the safety and appearance of the vehicle but also deems it unroadworthy and you are at risk of a $143 fine and 1 demerit point.