Formula for light "Keep it simple" was Hans Due's motto, and his Formel series definitely lived up to this motto. The shape of the lamp has been kept simple with the cone of the shade elegantly feeding into the cylinder at the top. The painted aluminium surface with the matte finish rounds off Formel's calm and balanced appearance. The lampshade’s smooth surface is easy to wipe clean. The lamp provides a great light in the hallway, over a desk or dining table. For a softer light, use a top mirror bulb or other bulb with a dimmed glow. Choose from several sizes We have recreated the Formel series lamps in several versions and sizes. This allows you to choose the exact lamp that suits your needs. The pendant here is also available in a smaller version, Ø26, and a larger version, Ø50, and in the colours white, forest green and black.