Nulla, produced by Davide Groppi, is a recessed wall lamp that consists of a tiny hole made in the ceiling that is practically invisible.2014 Compasso d'Oro winner. Thanks to a special optical system and LED technology, it projects a cone of light onto the surfaces below, evoking the magic of a minimalist stage. Fascinating as an optical illusion, Nulla actually conceals a sophisticated miniature lamp holder equipped with a transformer, which houses the bulb and is completely camouflaged under the plasterboard. The width of the light beam depends on the height of the ceiling, and goes up to a diameter of 144 cm. Led Ceiling Recessed Light + Installation KitSource: 100 / 240 V - 50 / 60 Hz 11 W LED - Angle of Emission = 24°Installation kit matte black included : Plasterboard flange 12.5 / 15 mmPlasterboard cut-out size Ø 21 mm - Minimum recessed space 75 mm DIM DALI/PUSH/1-10V Including Electronic transformer for Led 2.1 / 22 W - 220 / 240 V - 50 / 60 Hz - 1050 mA DCFor optional installation kit: Plasterboard panel 12.5 mm Plasterboard cut-out size 200 x 200 mm / 400 x 400 mm