NEC MultiSync LT220, 500:1, 16.78 million colours, 15 - 100 kHz, 50 - 120 Hz, Lamp, 1500 h NEC MultiSync LT220. Contrast ratio (typical): 500:1, Number of colours: 16.78 million colours, Horizontal scan range: 15 - 100 kHz. Light source type: Lamp, Service life of light source: 1500 h, Lamp type: NSH. Weight: 3.2 kg. Dimensions (WxDxH): 260 x 92 x 275 mm