The Knapstein PIA-3 ceiling lamp has a rectangular shape. It is 64 cm long and 18 wide. Its total height is 5.2 cm. The light from three integrated LEDs is diffused and homogeneously distributed downwards through matted glass. The PIA-3 has a matt nickel ceiling housing. As the lamp has a magnetic holder, no screws are visible in the ceiling housing. This ensures also that the lamp has a flat design. The three integrated LEDs each have a colour temperature of 2,700 Kelvin extra warm white. The ceiling light can be dimmed on site with a phase dimmer. Other rectangular, square or round PIA lamps are also available from the series.