the 4 wire.red for ignition +12v,orange for +12v battery,black for grounding and white for tacho input. The 2 wire socket for shifting light.Becoz it using led type be sure you connect this 2 wire correctly.Otherwise it won't light....
sorry for the mistake.......
This headlights problem has been haunting me since 2 months ago when I sent the headlight to restoration. It did help at first, my headlights looked as good as new when the restoration was just done...