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): 6500 h. Focal length range (f-f): 21 - 23.1 mm, Aperture range (F-F): 2.56 - 2.8, Offset: 120 %. Analog signal format system: NTSC, PAL, SECAM, Supported graphics resolutions: 1024 x 768 (XGA), 1600 x 1200 (UXGA), 640 x 480 (VGA), Supported video modes: 1080i, 1080p, 480i, 480p, 576i, 576p, 720p. RMS rated power: 2 W