Brightness (ANSI lumens): 3300, Native Resolution: WXGA (1280x800), Native Aspect Ratio: 16:10, Contrast Ratio (FOFO): 20,000:1, Display Color: 30-bit (1.07 billion colors), Light Source: Lamp, Light Source Life: a. Normal 5000 hrs, b. ECO 10000 hrs, c. SmartEco 15000 hrs, d. LampSave 15000 hrs, Throw Ratio: 0.49, Zoom Ratio: Fixed, Lens: F/# = 2.6,f = 6.9 mm, Projection Offset (Full-Height): 105%. BenQ's smart interactive classroom projector is the perfect solution for creating a flexible and diverse teaching environment when you need to upgrade.