Benq MX503. Projector brightness: 2700 ANSI lumens, Aspect ratio: 4:3, Projection technology: DLP. Service life of lamp: 4500 h, Lamp power: 190 W, Service life of lamp (economic mode): 6000 h. Focal length range (f-f): 21 - 23.1 mm, Aperture range (F-F): 2.56 - 2.8, Offset: 120 %. Vertical scan range: 23 - 120 Hz, Horizontal scan range: 31 - 102 kHz. Analog signal format system: NTSC, PAL, SECAM, Supported video modes: 1080i, 1080p, 480i, 480p, 576i, 576p, 720p