The HDTV Bias Lighting makes it easy to outfit your home theater with professional backlighting. Bias lighting adds a subtle white backlight to your HDTV that enhances image contrast, improves picture quality and increases viewing comfort. The color and brightness of the LEDs are carefully calibrated to achieve the optimal viewing experience and increase your HDTV's perceived contrast ratio - making blacks blacker and colors more vibrant. Simply attach the led strip to the back of your HDTV, insert the USB plug into an open USB port on your HDTV or powered USB hub, and turn it on with it convenient on/off switch. The HDTV Bias Lighting complements any HDTV up to 60"in size.