Acer XL2330W. Projector brightness: 5000 ANSI lumens, Projection technology: DLP, Projector native resolution: WXGA (1200x800). Light source type: Laser, Service life of light source: 20000 h, Service life of light source (economic mode): 30000 h. Focus: Manual, Focal length range: 16.88 - 21.88 mm, Aperture range (F-F): 2.59 - 2.87. Serial interface type: RS-232, HDMI connector type: Full-size, HDMI version: 1.4b. Noise level (economic mode): 26 dB, Projection modes: Ceiling, Front