Acer P1558I. Projector brightness: 5200 ANSI Lumens, Projector technology: DLP, native resolution of the projector: WUXGA (1920x1200). Light source type: Lamp, light source life: 5000 h, light source life (economic mode): 10000 h. Focus: Manual, focal length range: 16.9 - 21.61 mm, zoom type: Auto/Manual. Serial interface: RS-232. Noise level: 27 dB