A switch plate is a cover that protects and decorates the electrical switch on a wall. It is typically made of materials like plastic, metal, or wood and comes in various designs and colors to match home decor. The switch plate is installed over the switch to prevent dust and debris from entering the electrical components. Switch plates are often used in conjunction with light switches, which control the flow of electricity to light fixtures. They can also be found with outlets for electrical devices. Proper installation of a switch plate ensures safety and enhances the overall appearance of a room.