Samsung PS50A551S3RXXC, S Series. Display diagonal: 127 cm (50"), Display brightness: 1300 cd/m², HD type: Full HD. RMS rated power: 20W, Audio system: SRS TruSurround XT. Teletext level: 2.5. Colour of product: Black. Width: 123 cm, Depth: 9.5 cm, Height: 76.1 cm