Brand ACER Model X1228i Projector Technology DLP Resolution 1024 x 768 Display Compatibility N/A Display Color 1.07 Billion Colors (30-bit) Display Size Maximum 300" Brightness (ANSI Lumens) 4500 lm Contrast Ratio 20,000:1 Aspect Ratio 4:3 Distance 1-11.80m Throw Ratio 1.94 to 2.16 (1295.40 mm@2000 mm) Lens Aperture : f/2.41 Focal Length : 21.85 mm Projection Offset N/A Zoom Ratio Optical Zoom : 1.1x Digital Zoom : 2x Panel Display N/A Interface 1 x USB 1 x VGA Out 1 x VGA In 1 x Audio Inputs 1 x Audio Outputs Card Reader None Network i-Fi Speaker 3W x 1 Light Source Lamp Lamp Life(STD/ECO)(hr) Normal : 6000 Hour Economy : 10000 Hour ExtremeEco : 15000 Hour Keystone Correction -40°/+40° Audible Noise 27 dB Approximate Economy Mode 35 dB Approximate Standard Mode Special Features XGA Resolution BlueLightShield ColorSafe II Power Supply 120-230VAC Power Consumption 265 W Environment N/A Package Contents N/A Dimension (W x D x H) : 31.30 x 24.00 x 11.37 cm Net Weight 2.75 KG Package Dimension (W x D x H) : 40.00 x 16.50 x 34.00 cm Gross Weight 4.07 KG Volume 22,440.00 cm3 ประกัน 3 ปี https://cf.shopee.co.th/file/th-11134202-7r98s-ls835vwn17nc6a https://cf.shopee.co.th/file/th-11134202-7r98o-ls835w8kjqnb0d https://cf.shopee.co.th/file/th-11134202-7r98t-ls835wcqdn6gc3 https://cf.shopee.co.th/file/th-11134202-7r98r-ls835wi05xto93 https://cf.shopee.co.th/file/th-11134202-7r98r-ls835wm5zu9024