Specifaction :

1) Relay wiring harness for h4 Swing xenon conversion kit

2) Easy installation
3)To ensure safe and stable perforance
4)  Wholesales price

This relay harness is design to work with h4 xenon conversion kit, to get power directly from the battery instead from the headlight connection, so that the HID kit will have enough power to prevent HID flickering light problems, or one lamp power off due to lower power supply during vehicle initial start up.

Other models also come with relay harness for H1,  H3 H4, H7, H11, 9005, 9006, 9004, 9007, etc.