<p>The arrangement has a housing to accommodate a light source, and an additional decorative screen unit (10) attached to a base-decorative screen device. The unit (10) has a radiation protection section (13) with a high reflection coefficient, and an orifice ring (11) is formed with the section as a one-piece. The section is designed as a reflection section projecting from the ring to reflect rays incident by lens accommodated in the device.</p>
