The product is Powered directly through USB port no adapter required. It is long enough to cover most TVs, you can cut it down to length you want. Offers Bright and Rich colors, also remember your last setting when your device turns off and will resume once the device is back on. It is easy to install, comes with adhesive to the back of the strip (but make sure you've cleaned the surface), just peel and stick, super simple. Order This 1m LED Strip Light USB Powered RGB Multi Color TV Backlight Lighting With Remote Today While Supplies Last! We Have 24/7 Live Customer Support. This Product Is A Limited Production And Is Not Available In Stores. Order Now Because These Are Flying Off Shelves! Satisfaction Guaranteed With Every Order