LineTec is a patented lighting system from Busch + Müller with a special lens action. The light from the high-performance LEDs is spatially fanned out. The result is a uniformly illuminated light band. Why is that important? If you approached a bicycle from behind at night, you could only see a single point of light and could not estimate the distance well. For this the eye needs a spatial relation - especially in the "spaceless" darkness. A taillight with LineTec continuous-row lighting system emits a "spatial" light. Therefore other road users can estimate the distance much better and faster.