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H4 / 9003 XenonDepot Bi-Xenon HID Adapters

  • Perfect Fitment

    Correct Part Always

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NO HARNESS NEEDED: The H4 / 9003 XenonDepot Bi-Xenon HID Adapters are a plug and play alternative to the Bi-Xenon Relay Harness.  The harness requires connection to the battery whereas these simply plug between the HID Bulbs, HID Ballasts, and stock harness.  If your vehicle does not need a Relay Harness, this is the fastest and easiest way to install your Bi-Xenon HID Kit.

INDIVIDUAL: Unlike most Bi-Xenon Relay Harnesses, this keeps each side independant.  Why is this important?  Just in case you have a failure, only one side will stop working versus both sides going dark with a standard Relay Harness.  Safety First!


  • Operates Low & High for H4 / 9003 Bulbs
  • Plug and Play for Simple Installation
  • Universal Design, Fits All HID Kits
  • 2 Year Warranty


  • Two (2) H4 / 9003 XenonDepot Bi-Xenon HID Adapters