Epson PowerLite Pro G5550. Projector brightness: 4500 ANSI lumens, Aspect ratio: 16:10, 16:9, 4:3, Projection technology: LCD. Service life of lamp: 2000 h, Lamp power: 275 W, Lamp type: UHE. Focus: Manual, Focal length range (f-f): 21.28 - 37.94 mm, Aperture range (F-F): 1.65 - 2.55. Vertical scan range: 50 - 85 Hz, Horizontal scan range: 15 - 92 kHz, Dot clock scanning frequency: 162 MHz. Analog signal format system: NTSC, NTSC 4.43, PAL, PAL 60, PAL M, PAL N, SECAM, Supported video modes: 1080i, 1080p, 480i, 480p, 576i, 576p, 720p