App-controlled LED recessed ceiling light Smart Downlight, CCT The LED recessed ceiling light Smart Downlight is made of plastic. The integrated LED module is protected by a glass pane. The colour temperature can be set as required (2,700 K - 6,500 K), the intensity can be dimmed and timers and pre-set light scenes can also be set using the app via a WLAN connection. An additional gateway is not required for this. As the free Calex app is also compatible with Amazon Alexa, Siri Shortcuts and the Google Assistant, all functions can also be conveniently used via voice control. Technical features / compatibility - controllable via Calex app (free for Android and iOS) - adjustable white light: warm white (2,700 K) - daylight (6,500 K) - timer and pre-set scenes can be set via app - voice control possible with Amazon Alexa, Google Assistant and Siri Shortcuts - dimmable via app or voice command - WiFi 2.4 GHz