The Knapstein PIA-R3 is a round ceiling lamp with a diameter of 50 cm. The total height of the lamp is 5.2 cm. This flat design is made possible by a magnetic holder. This magnetic holder also ensures that no screws are visible in the ceiling housing. The light is distributed homogeneously and diffusely downwards through the matted glass. The ceiling housing has a matt nickel-plated surface. Three LEDs, each with a colour temperature of 2,700 Kelvin extra warm white, are integrated as light sources. The PIA-R3 from Knapstein is dimmable on site with a phase dimmer. In addition to this round ceiling lamp, the series also includes square and rectangular lamps.