Projection system DLP® | Resolution SVGA (800 x 600) | Maximum WUXGA (1,920 x 1,200) | Brightness 4,500 ANSI Lumens (Standard), 3,600 ANSI Lumens (ECO) | (Compliant with ISO 21118 standard) | Aspect ratio 4:3 (Native), 16:9 (Supported) | Contrast ratio 20,000:1 | Throw ratio 1.94 ~ 2.16 (51″@2m) | Zoom ratio 1.1X | Projection lens F= 2.41~2.53, f = 21.85~24.01mm | Manual Zoom & Focus | Lamp life 6,000 Hours (Standard), 10,000 Hours (ECO), 15,000 Hours (ExtremeEco) | Noise level 32 dBA (Standard), 24 dBA (ECO)