Bi-xenon Relay: GTR Pro (9003/H4) Ford or Alpha-Black finishes to match

or Alpha-Black finishes to match your style

Features: Superior performance over bulb-based fog lights

No drilling your OEM covers

to produce the light output for low beam and high beam

Combining the latest in LED technology with engineered solid optics

Bi-xenon Relay: GTR Pro (9003/H4) Ford or Alpha-Black finishes to matchReality 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