Brand: ViewSonic
Lumen: 3600 ANSI lumen
Resolution: 800x600
Warranty: 3year
Brand : ViewSonic
Lumen: 3500 lumens
Resolution: 1024 x 768
warranty :3 year
Brand : ViewSonic
Lumen: 250 Lumens of brightness
Resolution : 854 x 480
warranty : 3 year