Industrial-looking Louisanne ceiling lamp made of concrete grey metal Louisanne does indeed look like a ceiling lamp with an antique character because familiar shapes from a bygone era have been used. In addition, the surface of the metal shade has been given a concrete grey finish, which has an industrial character. Louisanne is therefore a ceiling lamp that can be combined with both industrial styles and interiors that integrate antique elements. Depending on the incidence of light, the grey colour of the light can range from green to bluish.