Winter days are short, and brightness is in short supply. It is essential that homes, cars and streets be well-lighted at all times to avoid compromising safety or comfort. This can be best achieved using light-emitting diodes (LEDs). Because they are not only more durable than traditional sources of illumination, but also save energy and produce a higher quality of light, the semiconductors are on the rise. Bayer is supporting this trend with its high-performance plastic polycarbonate, the mate...