NEC MultiSync VT770. Projector brightness: 3000 ANSI lumens, Contrast ratio (typical): 400:1. Service life of lamp: 2000 h. Vertical scan range: 50 - 120 Hz, Horizontal scan range: 15 - 100 kHz. Video formats supported: HDTV. Analog signal format system: NTSC, NTSC 4.43, PAL, PAL 60, PAL-M, PAL-N, SECAM