A conical reflector is integrated in the glass of the Serien Lighting Drum Ceiling M Short ceiling lamp. The reflector made of opal acrylic glass emits the light directly downwards and diffuses it softly all around. The Drum Ceiling M Short is 16 cm high and has a diameter of 22 cm. The ceiling lamp is offered in different versions: with a colour temperature of 2,700 Kelvin extra warm white, 3,000 Kelvin warm white or with dim to warm function. When dimmed, the lamp with dim to warm function imitates the dimming behaviour of classic incandescent lamps, which is often perceived as pleasant. When dimmed down, the light not only becomes darker but also changes its colour temperature. As a result, the colour temperature changes continuously from 1,800 Kelvin extra warm white to 3,000 Kelvin warm white. Besides this lamp, Serien Lighting also offers the Drum Ceiling S Short with a height of 13 cm and a diameter of 16 cm.