The VX2458-mhd can dim down enough to be used comfortably in a light-less room since the brightness can go below 80cdm/2, and it is bright enough for sun-lit rooms since it can output over 300cdm/2 at maximum brightness. The 870-930:1 contrast ratio is good and typical for an AUO TN panel, especially when considering the fact that quite a few AUO TN panels such as the curved 144-165hz 2560x1440 resolution TN panels have 700:1 contrast.