the following example is for you reference.

Screen Scale: 4:3/16:9
Power: 170W
Projection Technology: LCD
3D Technology: Anaglyph Red and Blue 3D
System: Multimedia System
Optical Resolution: 1920x1080dpi
Brightness: 7000 Lumens
Projected Dimension: 40-300 inches
Light Source: LED
Contrast Ratio: 4000:01:00
Projection Distance: 1.5 - 5.6 MeterNative Resolution: Native 1920 * 1080P,Max Support 4K Resolution (Only HDMI mode)
Throw Ratio: 1.45:1
Power: AC100-240V,50/60Hz
Package:Ten units to one carton, twenty cartons to one container
We offer 1-year warranty for each Projector.