Acer Vero XL2521i. Projector brightness: 4000 ANSI lumens, Projection technology: DLP, Projector native resolution: 1080p (1920x1080). Service life of light source: 20000 h, Service life of light source (economic mode): 30000 h. Focus: Auto/Manual, Focal length range: 21.86 - 24 mm, Throw ratio: 1.48 - 1.62:1. Supported graphics resolutions: 1920 x 1080 (HD 1080), Supported video modes: 1080p. Noise level: 34 dB, Noise level (economic mode): 29 dB, Projection modes: Ceiling, Front, Rear