Safety thanks to visibility. Held brings light into the darkness with the HLS technology! The retrofittable Held Light ystem (HLS) is the latest development from Held to make motorcycling even safer. The illuminated LED modules that are integrated into a motorcyclist's protective clothing improve rider visibility significantl in poor light. The HLS technology makes a key contribution to accident prevention when travelling at night or in foggy and rainy conditions. Unlike reflecto strips, which can only reflect light that shines on them, the optic fib es in HLS emit their own light constantly - a highlight in the literal sense of the word.