A. Multi Coloured & White Recessed Lighting: Customize the colour of your space with 10W RGB spotlight, featuring 16 million RGB colors for matching mood, 800 lumens at 2700K warm white color for daily illumination. CRI>85Ra. IP44 rated splash-proof. No flicker, no humming. B. BT MESH Connection & APP Control: No need to connect to WiFi. Just using Bluetooth, without hub or bridge, you can control hundreds of smart spot lights simultaneously and share with your family. Easily control all lamps within 30 meters, create your smart home. C. Dimmable & Timer Function: Set a schedule to automatically turn the dimmable recessed downlight on and off according to the regular program. Lighting colour remains as previous setting when turned on again. Support 1%-100% brightness adjustable via the app (Do not use with dimmers). D. Easily Use & Install: Thanks to the AC 85-265V input, you do not need a transformer. Directly wiring the IP44 colour spot lights to UK mains supply for instantly-brightening in your home. Ceiling cutout: about 70mm. The ceiling downlight rgb can be also turn on/off with a wall switch. Size: 113*50mmProducts from jinyu's store