Installation and setup of Shelly's Duo E27 RGBW smart lightbulb is quick and straightforward, taking only a few minutes and fitting directly into standard E27 downlight fixtures to provides dimmable lighting in both white and a range of colours. Colour and brightness can can be manually adjusted and fine-tuned using the free Shelly mobile app, or the bulb can be integrated into a broader Shelly smart home automation schedule, coordinating with other Shelly-connected devices such as heaters, motorised blinds, and windows. The Duo E27 RGBW includes a precise power monitoring feature, accurate to within 1%, and is compatible with both 110V and 220V power supplies. It's also widely compatible with voice assistants and systems, supporting Android and iOS devices, as well as voice control through Amazon Alexa and Google Assistant. Integration with various home automation systems is also possible via MQTT, CoAP, and REST API protocols