A metal power light key tag switch is a compact and portable device used for controlling power to various electrical appliances or equipment. It typically features a metal housing for durability and a key tag that can be attached to a keychain or carried in a pocket. When the key tag is inserted into the switch, it allows power to flow and activates the connected device, such as a light or small electrical appliance. Removing the key tag turns off the power, providing an easy and convenient way to control devices while preventing unauthorized use. These switches are commonly used in hotels, motels, and commercial buildings for energy-saving purposes and security.