Govee 10FT TV LED Backlight, comes with 4 pieces (2x3.28ft + 2x1.64ft), which can cover most 55inch 60 inch TVs. Using the Govee Home App or the remote control, you can enjoy over 16 million colors, multiple scene modes. Choose from 64+ preset scene modes. You can also choose your own color combinations in DIY mode. The build-in mic of control box captures the music rhythms better. Govee TV Backlights are USB powered, the TV light strips only used when TV is powered on.