The rectangular LED ceiling light Bopp Lamina 4-light is made of aluminium. This ceiling light in the smoothed aluminium finish is 72 cm long, 12 cm wide and 3 cm high. The rectangularly designed lamp has four light elements that emit warm white light glare-free directly downwards and into the room. The lamp is available in three versions: dimmable with a phase-cut and phase-angle dimmer, with a Casambi module or with a ZigBee module. With a Casambi module, it is possible to operate the ceiling light via smartphone or tablet using the Casambi app via Bluetooth. With a ZigBee module, the lamp can also be regulated via voice control. Both modules allow the lamp to be controlled via app.