The Bopp Less LED ceiling lamp has four light sources pointing in different directions on a diamond-shaped ceiling fixture. The integrated LED with an output of 31 watts has a colour temperature of 2,700 Kelvin extra warm white and emits light into the room and also indirectly onto the ceiling. The light of the integrated LED is characterised by a very good colour rendering with a high colour rendering index of Ra 85. This dimmable LED lamp is available in the surfaces smoothed aluminium and anthracite. The extremely flat ceiling lamp has a mounting height of only 4 cm and is 97 cm long and 97 cm wide. The lamp is available in three versions: dimmable via the existing house electrics with a phase cut-off and / or phase cut-on dimmer (not included in the scope of delivery), with Casambi module or with ZigBee module. With a Casambi module, it is possible to operate the lamp via smartphone or tablet using the Casambi app via Bluetooth. Casambi technology also offers the option of switching the lamp on at specific times via a timer. ZigBee enables wireless communication via WLAN between a Smart Media device and existing home technology. Using ZigBee, lamps, electric shutters, heating and loudspeakers, among other things, can be controlled via voice control.