Hello, it is a television with Direct LED. This means that (in contrast to the Edge LED) the backlighting behind the LCD layer is realised over the entire surface with individual LEDs. This means that the brightness of the TV is more even than with the Edge LED. Basic LED refers to the fact that the TV does not have local dimming. Local dimming could dim the backlighting in dark areas of the picture, resulting in better contrast.

No, 2x2.1 and 2x2.0, but nobody needs 4x2.1.