Bi-xenon Relay: GTR Pro (9003/H4) Ford Similar to the wiring that

Similar to the wiring that comes in our HID conversion kits

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Bi-xenon Relay: GTR Pro (9003/H4) Ford Similar to the wiring thatReality Check: Customers often ask, Do I really need a harness? Yes! A relay harness is designed to deliver steady voltage to your HID ballasts directly from the car battery. Nobody likes a flickering headlight, so why risk it? Factory headlight outputs are really only designed to power a halogen light bub, not an HID ballast. Under Control: GTR Lighting makes it easy with the H4 Bi xenon relay harness. Designed to be completely plug n play; it's a