Surface-mounted porcelain frames for wall switches or sockets, also known as ceramic retro plates, are decorative covers that can be used to enhance the appearance of surface-mounted wall switches or sockets. They are typically made of porcelain and come in a variety of styles and designs to match different decor styles.

These porcelain frames are specifically designed to be mounted onto the surface of the wall rather than being recessed into the wall. This can be a useful solution in situations where it may not be possible or practical to recess the switch or socket into the wall.

Installing a surface-mounted porcelain frame is usually a simple process that involves removing the existing switch or socket cover and attaching the porcelain frame to the wall using the screws that come with the frame. It's important to turn off the power at the circuit breaker before beginning installation and to follow any specific instructions that come with the porcelain frame.

Surface-mounted porcelain frames can add a touch of vintage or retro style to any room and are a great way to upgrade the look of your switches and sockets. They are often available in a range of colors and patterns, so you can find one that fits your specific style and design preferences.