NEC MultiSync LT220. Contrast ratio (typical): 500:1, Number of colours: 16.7 M. Service life of lamp: 1500 h, Lamp power: 220 W, Lamp type: NSH. Vertical scan range: 50 - 120 Hz, Horizontal scan range: 15 - 100 kHz. Weight: 3.2 kg. Dimensions (WxDxH): 260 x 92 x 275 mm, Power requirements: 100-120/200-240 V ±10%, 50/60 Hz, Lens system: F=2.5 – 2.9, f=22.4 – 27.0 mm