Philips 21HT3154. Display diagonal: 533.4 mm (21 "), Aspect ratio: 4:3, Viewable size diagonal: 510 mm. Analog signal format system: PAL B/G, PAL D/K, PAL I, SECAM B/G, SECAM D/K. Colour of product: Grey. Power consumption (typical): 51 W, Power consumption (standby): 5 W. Teletext: 1 pages