Hanging lamp designed by Gerhard Reichert &  Michele De Lucchi by  Artemide company. Its base is made of aluminum and metal and its body is made of blown handmade glass diffuser with polished-silk finish. It is available in three sizes (single diffuser, three diffusers on line, three diffusers in circle line ) in three different dimensions and ceiling version. 
Logico Sospensione 3 in Linea
Lamp type:  E14 3x150W  (Incandescent - economy - halogen)
Diameter of each glass18cm –L100cm-W40cm
Logico Sospensione Mini 3 in Linea
Lamp type:  E14 3x100W  (Incandescent - economy - halogen)
Diameter of each glass18cm –L66cm-W28cm
Logico Sospensione Micro 3 in Linea
Lamp type:  E14 3x160W  (Incandescent - economy - halogen)
Diameter of each glass18cm –L49cm-W18cm