Owners of BMW and Mercedes-Benz vehicles might encounter challenges when attempting to replace their original halogen bulbs with HIDs due to the distinctive design of the housing clip. These meticulously crafted adapters have been introduced to bridge this gap, ensuring a flawless fit for the HID bulb. Before making a purchase, owners should inspect their headlights for a specific plastic socket located behind the bulb, which would determine if the adapters are necessary. It's noteworthy that all these housings are compatible with H7 bulbs and incorporate projectors. The adapter's cutting-edge slotted design facilitates straightforward insertion of the bulb's wiring from the side. Once positioned, the bulb remains securely in place, mimicking the reliability of the stock setup.