What is the purpose of a mounting plate for a light fixture and how is it used in the installation process?

A mounting plate for a light fixture is used to securely attach the fixture to the ceiling or wall. It provides stability and support for the fixture. During installation, the mounting plate is typically attached to the electrical box in the ceiling or wall, and then the light fixture is connected to the plate using screws or other fasteners. This ensures that the light fixture is safely and securely in place.