The Bluetooth LED Bulb with Selectable Colour Tone works by connecting bluetooth to your mobile device by downloading the LinkupHome App or by connecting it directly to the mains electrical network. You can download the LinkupHome application, which is available for iOS and Android operating systems. This can be downloaded from the  App Store and  Google Play. Control the intensity of your LED bulb and change the colour temperature with your smartphone. In addition, it offers you the possibility of choosing between different types of ambient lighting to add a unique style to your home. Thanks to the Bluetooth connection to your mobile device, you can control the bulb at a distance of 20 meters. Don't think twice and enjoy lighting to your liking, with our range of Bluetooth products that we have available at LEDKIA. * The Bluetooth LED Bulb can be controlled through 1 single device at a time. What is CCT (Correlated Colour Temperature)? The colour temperature defines the colour appeara