Acer M511. Projector brightness: 4300 ANSI lumens, Projector native resolution: 1080p (1920x1080), Contrast ratio (typical): 10000:1. Light source type: LED, Light source brightness: 4300 lm, Lamp power: 245 W. Focal length range: 15.84 - 17.42 mm, Aperture range (F-F): 1.98 - 2.03, Zoom ratio: 1.1:1. Analog signal format system: NTSC, PAL, SECAM. Wi-Fi standards: 802.11a, 802.11b, 802.11g, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac)