The Marset Plaff-on! 33 can be mounted as a wall or ceiling light. It has a diameter of 33 cm and a depth or height of 11.8 cm. The Plaff-on! 33 consists of a lacquered aluminum ring and a mouth blown opal glass diffuser. The ring is integrated around the diffuser and is white on the inside. From the outside the ring is available in silver-grey or black. Most of the light is emitted downwards. In addition, the aluminum ring around the diffuser directs the light upwards so that a halo appears on the ceiling. At the same time, it also acts as a reflector for the light emitted from the diffuser to the side, so that it is also emitted downwards. The wall and ceiling lamp is available as a halogen or LED version. Both versions can be dimmed by the customer. The halogen version can be operated with halogen lamps, compact fluorescent lamps or LED retrofit lamps. The LED version has an integrated LED module. The LED version is also available as a DALI dimmable version on request.