Amazon.com: H4 HID Headlight Bulbs 6000K Xenon White with 55W DC Slim HID Ballast by Yifengshun Super Bright Xenon HID Light Bulb for Auto High / Low Beam (2 Xenon Bulbs +
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55W H4 HID Xenon Kit 3000K 6000K 8000K 10000K Car Light Bulb - China HID Xenon, Auto Lamp | Made-in-China.com