Your new Bi-Xenon lights next to the old (new on the right).
The old lights on the way out. You can see I've removed the 4 screws already. In the bottom of the pic above you can see the bracket that will need to be installed to the light prior to installing to the housing.
At this time you will use the supplied hardware and install this bracket. You can also reference the OEM to gauge how it will go.
If you look closely at the pic below you will notice the bracket is installed and how the hardware was used.