Calais is made from solid aluminum. It is a large round bulkhead light with a brass cover and with glass light diffuser. The fasteners are aluminum cross / Phillips screws. This light is manufactured entirely in Greece. All aluminum parts have been molded in Greece and then hand-processed and hand-assembled. The gauge of the body and the mesh cover is about 1.5mm. The high gauge makes the light a bit heavy but robust and unbreakable. The finish or coating of the light has been applied using electroplating thus it will never peel off or crack. It can be installed on the wall or the ceiling or on a post or a boat indoors or outdoors.