designer's own words:Plane_light is intended to interact with human... It has a telescopic bar to easily set the height, and a lozenge to set the inclination. There is a LED module at the end of the bar, which provides the light, and its covered with an opal white plastic case. It can be used to provide a useful light source or as an ambient light (using RGB LED technology). The square shape makes it easy to combine many of them to illuminate public spaces, as well as installations.