The main headlight LED KOSO with light of central position approved. The modern headlight LED with light of central location is in metal. The flat housing with cooling fins on the Sissybar side is beautiful and makes the installation easier. Dimensions: housing diameter: 170 mm Depth: 84 mm allocation of cables: 3 Pin Plug Yellow = dipped beam Blue = high beam light black = Ground extra cable: White = Tail Light Black = Ground