Acer B250i. Projection technology: LED, Projector native resolution: 1080p (1920×1080), Contrast ratio (typical): 5000:1. Light source type: LED, Service life of light source: 20000 h, Service life of light source (economic mode): 30000 h. Focus: Auto, Fixed focal length: 9.25 mm. Supported graphics resolutions: 1920 x 1080 (HD 1080), 1920 x 1200 (WUXGA), Supported video modes: 1080p. HDMI connector type: Full-size