A: In fact, the HID headlights installation, is the original halogen car headlight bulbs, remove the xenon bulb replaced with the model head, and to install the ballast in the dust cover on drilling and leads to the wiring harness, plus a relay line group, the installation is very convenient, but for the sake of safety recommended by a professional auto electrician operation. Must own DIY, then the installation before consulting the relevant experts, the installation engineer

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