Antique look, modern form and lighting technology - LED wall luminaire Calais As is well known, opposites attract each other. The rectangular wall luminaire Calais captivates with the combination of modern shapes, materials and energy-efficient LEDs with a surface in antique nickel look. A smaller cover made of opal, externally shiny glass is attached to the slightly curved metal plate. This allows the light to be partly diffused forward and partly reflected indirectly via the metal, emphasising its structure atmospherically.