These H7 to D2S/D2R adapters allow you to convert
your H7 headlights to Xenon lights. With the H7 adapters, the HID bulbs will
correctly stay at the FOCUS POINTS and provide correct beam pattern.
You place the adapter on the bulb, with the two notches on the
bulb going through the holes in the adapters(see pictures). Notice how the
edges of the bulb protrude over the edges of the adapter. You will need to get
something to cut down the edges of the bulb that stick out(see pictures). The
one that shown in the pictures was cut on the top. In most cases the notch will
have to be on the bottom. Whatever the case is you need to have the return wire
in the six o'clock position. That is in reference to the cutoff shield.