VIZIO"s 37" Class Edge Lit Razor LED LCD HDTV features 1080p Full HD resolution and Edge Lit Razor LEDTM backlight for brilliant color and contrast in a razor thin design. In addition to its amazing 100,000 to 1 Dynamic Contrast Ratio, it also has built-in ambient light sensing technology that automatically adjusts backlight levels to the brightness of its surroundings so your picture is never washed out or too bright.