VIZIO’s E550VL 55” LCD HDTV delivers full 1080p HD picture quality and superior audio quality at an amazing value. This flat screen LCD HDTV features 120Hz refresh rate, SRS TruVolumeTM and SRS TruSurround HDTM audio for advanced virtual surround sound, 100,000 to 1 Dynamic Contrast Ratio, and three HDMI ports to connect up to three HDMI devices to your TV. The E550VL also exceeds Energy StarTM 4.0 guidelines to reduce energy consumption and utilizes built-in ambient light sensing technology, which automatically adjusts backlight levels to the brightness of its surroundings.