Art Deco lamps belong to a period with hard edges: roughly 1920 to 1939, named after the Paris Exposition Internationale des Arts Décoratifs et Industriels Modernes of 1925, and built out of brass, chrome, nickel, opal and smoked glass, marble, onyx and black lacquer. It is the first decorative style that took its shapes from machinery and from the new skyscrapers rather than from plants, and that is the reason it still reads as modern a century later. It is also the style most often faked by putting a gold ring around a smoked glass ball, so the useful thing this page can give you is a way to tell the difference.
Look at any fitting sold as Art Deco and run it past these. Three of the five is usually enough.
What is not Art Deco: bare filament bulbs on black flex, a plain brass sphere, a cage of thin rods. Those are industrial and mid-century motifs, and they arrived after this period ended. The other frequent confusion is with art nouveau lamps, which run about 1890 to 1910 and are organic, asymmetric and plant-derived — Art Deco is the reaction against exactly that.
Almost every choice you make on this page comes down to what the glass does to the light source behind it, and the three period materials behave completely differently.
Glass types in Art Deco fittings and what each does to glare GlassWhat it does to the lightBulb it needs Fluted or reeded clear glassEach groove behaves as a small cylindrical lens. It smears the image of the filament sideways into a row of narrow bright lines, so the shade sparkles and the source is broken up — but the source is still visible, and its brightness is not reduced.A low-brightness source: a frosted lamp, or a long filament LED where the light comes off a long line rather than a point. Opal glass, white through the thicknessScatters the light completely. The whole shade becomes an even glowing surface, the filament disappears from every angle, and the fitting can be looked at directly.Almost anything that fits and stays within the stated wattage. This is the forgiving option. Alabaster, or plaster and resin imitating itTransmits warmly and unevenly, with the veining showing as darker figures in a lit field. Historically used for bowl uplighters hung on chains.A diffused source, and one with good colour rendering, or the veining goes flat and grey. Smoked or amber glassCuts output and warms the colour, without hiding anything. A clear bulb behind smoked glass is as glaring as a clear bulb without it, only browner.Frosted, always, and expect to need more lumens than the same fitting in clear glass.The short version: fluting shapes light, opal hides the source. If a fitting hangs at eye level or sits on a table beside a chair, and the glass is clear or fluted, the bulb you buy is doing half the design work.
Every one of these fittings was designed under tungsten light, and colour temperature is what decides whether it looks right or looks like a reproduction.
The style covers every fitting in the house, and the practical constraints differ by type rather than by decade. Overhead, start from ceiling lights art deco, which sets out the choice between a hanging fitting and a flush one against your ceiling height. For a hallway, a stair or a dining room, chandeliers art deco covers the tiered and multi-arm fittings the period is known for. At eye level, wall lights art deco handles the fan-shaped shell uplighters and the pairs that flank a mirror. On a surface, see table lamps art deco, where the marble and onyx bases live.
No, and they are thirty years apart. Art Nouveau, roughly 1890 to 1910, is asymmetric, organic and drawn from stems, flowers and whiplash curves. Art Deco is symmetric, geometric and machine-derived. Putting one in a room furnished for the other is the most visible mismatch in period lighting.
Yes, deliberately. It darkens unevenly, faster where hands touch it, and a light polish brings it back. If you want the colour it arrives in to stay, buy lacquered — but accept that lacquer eventually fails at the wear points and cannot be repaired invisibly.
Better than most period styles, because the shapes are geometric rather than ornate. A stepped brass pendant over a plain table sits comfortably where a carved fitting would not. The limit is quantity: one or two strong fittings in a room, not six.
For a fitting in the middle of a room, add the room's length and width in metres and read the result as centimetres of diameter — a 4 by 5 m room takes something around 90 cm. Over a dining table, ignore the room and use the table: shade width about one third to one half of the table width.
Within one fitting, the period did it constantly — a chrome stem with brass collars is authentic. Across a room it is harder, and the reliable version is to keep one metal on the fittings and let the other appear in the hardware and the frames.
