A wall switch is an electrical device, usually mounted on a wall, used to control the on/off status of a light or other electrical appliance. It connects or disconnects a circuit through a simple mechanical or electronic mechanism. Modern wall switches may also integrate dimming, remote control or smart home functions, improving convenience and safety.

Wall switches are mainly made of plastic, metal and glass. Plastic switches are lightweight and economical, suitable for home use; metal switches are more durable and are usually used in commercial or industrial environments; glass switches are stylish and easy to clean, but relatively expensive. Different materials have their own characteristics in terms of durability, appearance and price.

Wall switches are made of the following materials:

Plastic: a common material that is lightweight and low-cost, suitable for home use, and available in a variety of colors and styles.
Metal: such as aluminum or stainless steel, which is durable and modern in appearance, suitable for commercial or industrial environments, and has better corrosion resistance.
Glass: provides a high-end look, is easy to clean, and is often used in luxury decorations, but is more expensive and may not be impact-resistant enough.