How to Fit HID Lights in Projector Headlights

Written by matt scheer
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If you are dissatisfied with the look and brightness of the halogen headlights in your projector headlight assemblies, you can replace them with High Intensity Discharge (HID) headlights. HID headlights emit more light and last longer than halogen headlights. Projector headlight assemblies feature a cone-shaped housing around the headlight bulb that focuses the headlight bulb's light into a beam, or projection. You can buy HID headlights at auto stores and online vendors. The lights cost about £65 a pair.

Skill level:

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Things you need

  • HID headlight installation kit
  • Latex gloves

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  1. 1

    Turn your headlight switch to "Off." Turn your vehicle off. Prop open the bonnet.

  2. 2

    Disconnect the wiring harness on the rear of the projector headlight assembly.

  3. 3

    Put on the latex gloves to handle the halogen headlight in the projector headlights if you wish to save the headlight for later use.

  4. 4

    Turn the projector headlight assembly's halogen headlight bulb counterclockwise until it loosens enough to remove it from the back of the assembly. Save the headlight for reuse or resale.

  5. 5

    Insert the HID headlight into the projector headlight assembly in the same manner the halogen headlight was set.

  6. 6

    Connect the wiring harness you removed earlier to the ballast that comes with the HID headlight installation kit.

  7. 7

    Plug the ballast into the base of the HID headlight.

  8. 8

    Mount the ballast to the back of the projector headlight assembly with the double-sided adhesive pad that comes in the HID headlight installation kit.

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