Why doubles? Because they are very useful: over a bed, above a work-surface, in the kitchen above a table.... And you only need one power point for two lamps. The arms are adjustable, they have a minimum lenght of 574 mm and a maximum lenght of 884 mm.
In 1921, Bernard-Albin Gras designed a series of lamps for use in offices and industrial environments. The Gras lamp is astounding in its simple yet beautiful design, which has neither screws nor welded joints in the basic form. Very quickly Le Corbusier was seduced by the modern aspect and the quality of this lamp. It did not take long for Le Corbusier to use the lamps in his own offices, as well as in many of his most architectural projects all over the world. Ever since the Gras lamp has been a legend.
See pictures for the technical drawing.
The lamp shade is available in 7 different versions.
CLI - 2 x E27 - MAX 15W - LED or FLUO
Discover also the other double lamps from Gras at the bottom of this page.