The LED ceiling light Bopp Touch 4-light has four light elements that emit their warm white light diffusely through the matt acrylic glass both upwards and downwards. This ceiling light is 78 cm long, 21 cm wide and has a height of 9.5 cm. The round, centrally arranged ceiling mount of the Touch by Bopp is optionally available in the surfaces polished aluminium or white. The ceiling bracket and ring of the luminaire elements are each in the same finish. The four luminaire elements are arranged in a row so that they create symmetry. The lamp is available in three different 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.