The slightly off-kilter angled geometry of the Zeta single-light LED wall sconce calls to mind the mind-bending optical effects in M.C. Escher's graphic artwork. The sculptural, modern Zeta protrudes directly from the wall with a skewed box-shaped housing made of cold-rolled steel. The front panel is made of matte white acrylic to diffuse and soft the bright light emitted from the LED lamping inside.