Bunker lights are a category of exterior wall lights that are durable, and have a high level of protection from impact using tempered glass or metal protection in the form of a cage or grille. They are also a great source of ambient light, great for lighting up walkways and outdoor patio areas. As these lights were a requirement in bunkers, hence the name remained. Bunker lights are commonly used in both residential and commercial areas, and come in a variety of covers to suit the application. Mostly available with a plain cover, eyelid cover or grille. Mostly constructed from aluminium, and in polycarbonate to suit coastal areas.