Acer X1228i is an Essential series DLP projector designed for general everyday use in offices and at home. It offers clear visuals with a high brightness and contrast ratio, wireless capabilities (with a dongle), and 3D support. 

Feature     Details    
Projection System    DLP™    
Native Resolution    XGA (1024 x 768)    
Maximum Resolution    WUXGA (1920 x 1200)    
Brightness    4,800 ANSI Lumens (Standard)
3,840 ANSI Lumens (Low Mode)    
Contrast Ratio    20,000:1    
Aspect Ratio    4:3 (Native) , 16:9 (Supported)    
Image Size    23" to 300" (58.4 cm to 7.62 m)    
Throw Ratio    1.94 to 2.16    
Throw Distance    1 m to 11.8 m    
Lamp Life    6,000 hours (Standard)
10,000 hours (ECO)
15,000 hours (ExtremeEco)    
Speaker    1 x 3W    
Dimensions (WxDxH)    313 x 240 x 113.7 mm    Acer (MY)
Weight    2.75 kg