VIZIO E550VA. Display diagonal: 1413.3 mm (55.64 "), Display brightness: 500 cd/m², HD type: Full HD. Tuner type: Analog & Digital, Analog signal format system: NTSC, Digital signal format system: ATSC. Number of loudspeakers: 2 pcs, RMS rated power: 15 W. VESA mounting interfaces compatibility: 400 x 400 mm. Power consumption (typical): 122 W, Power consumption (sleep mode): 1 W, Input voltage: 120 V