For Mercedes CLK W209 C209 A209 03-2009 White H7 Dipped Dip Beam Headlight Bulbs

If your H7 bulb uses an adapter ring (or Retainer) behind the bulb for lock in into the lamp's socket, this H7 LED bulb will not work without a right "LED H7 retainer" for your vehicle. If there is a retainer on the factory H7 bulb, you will need to replace the retainer with a H7 LED retainer for your vehicle.

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