Starbrick Light by Olafur Eliasson

Starbrick is a modular lighting system created by German Studio Olafur Eliasson for Zumtobel. The Starbrick’s LEDs are organised to emit white light while also creating a luminous, yellow and kaleidoscopic core. The body of the module consists of two kinds of polycarbonate: a translucent type modulates the LED light; an opaque type makes up the body of the module, its matte black surface counterbalancing the light volumes. When you stack the Starbricks, the opaque surfaces are reduced, to the point where the white light generates the polyhedric shapes between the bricks.

Source: Starbrick