App-controlled LED light strip Twinkly Line is a self-adhesive + magnetic, slim, smart LED light strip perfect for bringing color and endless moods to any rooms in your home. With an all-black finish, bright and colorful LEDs, and the smallest cross-section profile on the market, Twinkly Line is a cool – yet discrete – decorative lighting device. Like all Twinkly products, Line can be mapped and every single LED can be controlled individually, allowing you to create and reproduce unique effects, gradients, and color animations – Line becomes your screen. Magic is in the App The Twinkly App enables you to make your Line unique, thanks to a wide range of pre-made effects and animations, as well as the ability to create your own from scratch. All effects are completely customizable: brightness, speed, intensity, and color can all be modified with a single tap, providing you with unlimited possibilities to create the perfect lighting decoration. Line can be grouped together with other Twinkly devices to create larger, synchronized light installations. Extend to double You can use Line Extension Kit to add more length to your decoration. It’s really as simple as connecting it to your Line Starter Kit. Note: The Extension Kit doesn’t come with a power cable or a controller. It is meant to be used only with Line Starter Kit.