Grace round LED ceiling light with Bluetooth module for smart Casambi light control The Grace ceiling lamp is formed as a round aluminium ring with a satin acrylic diffuser on the inside. This is angled downwards and encloses powerful LEDs whose warm white light illuminates a large area. Grace can be switched on and off as usual using conventional wall switches. Smart dimming and switching is also possible by pairing the LED ceiling light with a smartphone/tablet via Bluetooth and controlling it using the Casambi app. This also allows groupings with other Casambi-compatible lights and schedules to be set up for automated control. Special features / compatibility: - Colour temperature can be set to 2,700 K or 3,000 K before installation - Good colour rendering: CRI >90 - Smart control with free Casambi app (iOS and Android) via smartphone, Tablet or Smartwatch - Can still be switched on and off using a conventional wall switch - No internet access required, control is via Bluetooth - Mesh-compatible