A switch plate is a protective cover that fits over a light switch or electrical outlet. It serves to keep the wiring safe and provides a finished look to walls. Switch plates come in various materials, such as plastic, metal, and wood, and are available in different colors and designs to match home decor. Installing a switch plate is a simple task that can enhance the appearance of a room. They are typically secured with screws and can be easily replaced if damaged or if you want to update the style. Properly fitted switch plates also help prevent dust and debris from entering the electrical components behind them.