How to recognize the real Philips Ultinon HID bulb from a clone?
There are several indications. One of them is that they are only made in Aachen, Germany. They are not made or made under license anywhere else. The rest of the properties are shown in this picture. It shows the D2S version of it. Rebased bulb might lack the text on the base. Custom base will lack the entire base. The remaining properties will still be valid.
