HDTV bias lighting kit

The soundscience HDTV bias lighting makes it easy to outfit your home theater with professional backlighting. The HDTV bias lighting kit adds a subtle white backlight to your HDTV, reducing the eyestrain caused by differences in picture brightness from scene to scene in movies, TV shows and video games. USB Powered. Unit Dimensions: Cable: 51.1", Light Strip: 55.1".