LineTec is a patented light system from Busch + Müller with special lens effect. The spot light of high-performance LEDs is fanned into a spatial dimension. It creates an evenly luminous strip of light. Why is this important? If you approached a bike from the back at night, you only saw a single light point and could not estimate the distance well. Because the eye needs a spatial relation - especially in the "spaceless" darkness. A rear light with LineTec strip light emits a "spatial" light. Therefore, other road users can estimate the distance much better and faster. StVZO: with StVZO approval features: parking light details: strip light function LineTec - hole spacing 50 mm design: rear light power supply power source: hub dynamo mount mounting bracket: pannier rack mounting light bulb: LED.