The PanzerGlass screen protector for 12/12 Pro in black with anti blue light glass has the same key features as the original PanzerGlass screen protector thus protecting your screen against scratches and shocks.As an additional feature this glass features a blue light blocking layer ensuring that your eyes are protected from the particular blue light emitted from our screens which can be hard on the eyes. This anti blue light layer helps to soften the strong light from your phone which is especially important in the darker hours before bed as the blue light can trick brain into thinking its daytime and disrupt your sleeping pattern.PanzerGlass anti blue light glass is case friendly and will appear slightly darker than the original PanzerGlass.