The Serien Lighting Drum Ceiling M Long is a ceiling lamp with a mouth blown clear glass. In the glass there is a conical reflector integrated made of opal acrylic glass. This reflector directs the light downwards and softly diffuses it all around. In total, the lamp is 28.5 cm high and has a diameter of 22 cm at its widest point. The Drum Ceiling M Long is available in three versions: with a colour temperature of 2,700 Kelvin extra warm white, 3,000 Kelvin warm white or with Dim to warm function. All versions are dimmable on site with a leading edge or trailing edge phase dimmer. With the Dim to warm function, the colour gradient is reproduced with the warmer light colour of a classic filament lamp. The colour temperature changes by dimming continuously from 1,800 Kelvin extra warm white to 3,000 Kelvin warm white. On request, the lamp is also offered DALI or 1-10 Volt dimmable.